Update artifact upload/download actions

Author: sirosen

.github/workflows/build.yaml

@@ -100,7 +100,7 @@ jobs:
           python -m tox run-parallel -m ci -- --junitxml pytest.{envname}.xml
           python -m tox run -e cov
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: pytest-report-py${{ matrix.py }}-${{ matrix.os }}
           path: pytest.*.xml
@@ -115,7 +115,7 @@ jobs:
         with:
           python-version: "3.x"
       # download everything
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           path: artifacts/
       # collate and report

.github/workflows/publish_to_pypi.yaml

@@ -22,7 +22,7 @@ jobs:
       - name: Check Dists (twine)
         run: twine check dist/*
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: packages
           path: dist/*
@@ -35,7 +35,7 @@ jobs:
       id-token: write
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: packages
           path: dist
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: packages
           path: dist

.github/workflows/publish_to_test_pypi.yaml

@@ -37,7 +37,7 @@ jobs:
       - name: Check Dists (twine)
         run: twine check dist/*
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: packages
           path: dist/*
@@ -51,7 +51,7 @@ jobs:
       id-token: write
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: packages
           path: dist