release 4.2.1 (#54)

- bump version to 4.2.1
- add release pipeline

.github/workflows/release.yml

@@ -0,0 +1,38 @@
+name: Publish Python 🐍 distributions 📦 to PyPI
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build-n-publish:
+    name: Build and publish Python 🐍 distributions 📦 to PyPI
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+    - name: Install pypa/build
+      run: >-
+        python3 -m
+        pip install
+        build
+        --user
+    - name: Build a binary wheel and a source tarball
+      run: >-
+        python3 -m
+        build
+        --sdist
+        --wheel
+        --outdir dist/
+        .
+    - name: Publish distribution 📦 to PyPI
+      if: startsWith(github.ref, 'refs/tags')
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        password: ${{ secrets.PYPI_API_TOKEN }}
+        verbose: true
+        print-hash: true

django_tidb/__init__.py

@@ -15,6 +15,6 @@
 # wrong version of Django is installed.
 from .functions import register_functions
 
-__version__ = "4.2.0"
+__version__ = "4.2.1"
 
 register_functions()