Add GitHub Actions workflow for egg subpackage

.github/workflows/egg-pytest.yml

@@ -0,0 +1,81 @@
+name: egg-pytest
+permissions:
+  contents: read
+
+on:
+  - pull_request
+  - push
+
+env:
+  PYTHON_LATEST_VERSION: '3.14'
+
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ['3.11', '3.12', '3.13', '3.14']
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: astral-sh/setup-uv@v7
+        with:
+          python-version: ${{ matrix.python-version }}
+          enable-cache: true
+
+      - name: dependencies
+        working-directory: egg
+        run: uv sync --locked --extra dev
+
+      - name: pytest
+        working-directory: egg
+        run: uv run pytest
+
+  build:
+    runs-on: ubuntu-latest
+    needs: pytest
+
+    if: "github.event_name == 'push' && startsWith(github.ref, 'refs/tags')"
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: recovery tag information
+        run: git fetch --tags --force
+
+      - uses: astral-sh/setup-uv@v7
+        with:
+          python-version: ${{ env.PYTHON_LATEST_VERSION }}
+          enable-cache: true
+
+      - name: build
+        working-directory: egg
+        run: uv build
+
+      - uses: actions/upload-artifact@v6
+        with:
+          name: dist
+          path: egg/dist/*.whl
+
+  upload:
+    runs-on: ubuntu-latest
+    needs: build
+
+    environment:
+      name: pypi-egg
+      url: https://pypi.org/project/apyds-egg
+    permissions:
+      id-token: write
+
+    steps:
+      - uses: actions/download-artifact@v7
+        with:
+          name: dist
+          path: dist
+
+      - uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          packages-dir: dist