Update Github actions to handle Python 3.12

Author: Zsailer

.github/workflows/check-release.yml

@@ -17,6 +17,9 @@ jobs:
         uses: actions/checkout@v4
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - name: Install typing_extension for Python 3.12
+        shell: bash
+        run: pip install typing_extensions
       - name: Check Release
         uses: jupyter-server/jupyter_releaser/.github/actions/check-release@v2
         with:

.github/workflows/prep-release.yml

@@ -30,7 +30,9 @@ jobs:
       contents: write
     steps:
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
-
+      - name: Install typing_extension for Python 3.12
+        shell: bash
+        run: pip install typing_extensions
       - name: Prep Release
         id: prep-release
         uses: jupyter-server/jupyter_releaser/.github/actions/prep-release@v2

.github/workflows/publish-release.yml

@@ -20,7 +20,9 @@ jobs:
       id-token: write
     steps:
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
-
+      - name: Install typing_extension for Python 3.12
+        shell: bash
+        run: pip install typing_extensions
       - uses: actions/create-github-app-token@v1
         id: app-token
         with: