Update GitHub Actions workflows

Author: kabilar

.github/.staging_workflows/anchored_u24_element_before_release.yaml

@@ -0,0 +1,18 @@
+name: Release
+on:
+  workflow_dispatch:
+jobs:
+  make_github_release:
+    uses: datajoint/.github/.github/workflows/make_github_release.yaml@main
+  pypi_release:
+    needs: make_github_release
+    uses: datajoint/.github/.github/workflows/pypi_release.yaml@main
+    secrets:
+      TWINE_USERNAME: ${{secrets.TWINE_USERNAME}}
+      TWINE_PASSWORD: ${{secrets.TWINE_PASSWORD}}
+    with:
+      UPLOAD_URL: ${{needs.make_github_release.outputs.release_upload_url}}
+  mkdocs_release:
+    uses: datajoint/.github/.github/workflows/mkdocs_release.yaml@main
+    permissions: 
+      contents: write

.github/.staging_workflows/anchored_u24_element_release_call.yaml

@@ -0,0 +1,32 @@
+name: Test
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        py_ver: ["3.9", "3.10"]
+        mysql_ver: ["8.0", "5.7"]
+        include:
+          - py_ver: "3.8"
+            mysql_ver: "5.7"
+          - py_ver: "3.7"
+            mysql_ver: "5.7"
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{matrix.py_ver}}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{matrix.py_ver}}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8 "black[jupyter]"
+      - name: Run style tests
+        run: |
+          python_version=${{matrix.py_ver}}
+          black element_event --check --verbose --target-version py${python_version//.}
+