update: ipywidgets to be 8 and widgetsnbextension to be exactly 4.0.7

Author: Rui-Zhu1

.github/workflows/docs_to_pages.yml

@@ -9,7 +9,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v3
       with:
-        python-version: '3.7.17'
+        python-version: '3.8.17'
     - name: Install poetry
       uses: abatilo/actions-poetry@v2.0.0
     - name: Install docs building dependencies

.github/workflows/publish_on_release.yml

@@ -11,7 +11,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v3
       with:
-        python-version: '3.7.17'
+        python-version: '3.8.17'
     - name: Install poetry
       uses: abatilo/actions-poetry@v2.0.0
     - name: Install project dependencies

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
       id: setup-python
       uses: actions/setup-python@v3
       with:
-        python-version: '3.7.17'
+        python-version: '3.8.17'
     - name: Install Poetry
       uses: snok/install-poetry@v1
       with: