Update github actions and fix readthedocs (#3983)

* Update upload-artifact and checkout actions

* Try to fix the documentation build

* Update download-artifact action

* Update python version in CI (3.8 -> 3.13)

* Use python 3.12 in test.yml workflow, to fix the documentation and the UI test

* Update snapshots, and restore the default python version to 3.13 in CI, except for documentation test

Author: brichet

.github/workflows/build.yml

@@ -11,12 +11,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.8'
+          python-version: '3.13'
           architecture: 'x64'
 
       - name: Cache pip on Linux

.github/workflows/devinstall.yml

@@ -11,11 +11,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.8'
+          python-version: '3.13'
           architecture: 'x64'
       - name: Cache pip on Linux
         uses: actions/cache@v3

.github/workflows/lint.yml

@@ -8,12 +8,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.8'
+          python-version: '3.13'
           architecture: 'x64'
 
       - name: Install dependencies

.github/workflows/packaging.yml

@@ -19,12 +19,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           architecture: 'x64'
 
       - uses: actions/cache@v3
@@ -71,7 +71,7 @@ jobs:
           sha256sum * | tee SHA256SUMS
 
       - name: Upload distributions
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: dist ${{ github.run_number }}
           path: ./dist
@@ -83,16 +83,16 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu, windows]
-        python: ['3.7', '3.10']
+        python: ['3.8', '3.13']
         dist: ['ipywidgets*.tar.gz']
         include:
-          - python: '3.10'
+          - python: '3.13'
             dist: 'jupyterlab_widgets*.tar.gz'
             os: 'ubuntu'
-          - python: '3.10'
+          - python: '3.13'
             dist: 'widgetsnbextension*.tar.gz'
             os: 'ubuntu'
-          - python: '3.10'
+          - python: '3.13'
             dist: 'ipywidgets*.whl'
             os: 'ubuntu'
     steps:
@@ -102,7 +102,7 @@ jobs:
           python-version: ${{ matrix.python }}
           architecture: 'x64'
       - name: Checkout # For the cache keys
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get pip cache dir
         id: pip-cache
@@ -119,7 +119,7 @@ jobs:
       - name: Install the prerequisites
         run: |
           python -m pip install pip
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: dist ${{ github.run_number }}
           path: ./dist

.github/workflows/tests.yml

@@ -7,11 +7,11 @@ jobs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.8
+          python-version: '3.12'
           cache: 'pip'
           cache-dependency-path: |
             **/setup.cfg
@@ -30,11 +30,11 @@ jobs:
     name: JavaScript
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.8
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: |
             **/setup.cfg
@@ -77,10 +77,10 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
@@ -104,11 +104,11 @@ jobs:
     name: Message Specification
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.8
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: |
             **/setup.cfg
@@ -131,11 +131,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: |
             **/setup.cfg
@@ -178,15 +178,15 @@ jobs:
 
       - name: Upload Playwright Test assets
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ipywidgets-test-assets
           path: |
             ui-tests/test-results
 
       - name: Upload Playwright Test report
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ipywidgets-test-report
           path: |
@@ -200,7 +200,7 @@ jobs:
 
       - name: Upload updated snapshots
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ipywidgets-updated-snapshots
           path: ui-tests/tests

.readthedocs.yaml

@@ -10,3 +10,5 @@ python:
       path: ./python/ipywidgets
 conda:
   environment: docs/environment.yml
+sphinx:
+  configuration: docs/source/conf.py