Add GitHub Actions workflow for PyPI publishing

The workflow carries out the following steps:

1. Check out the repository.
2. Install Python.
3. Install Poetry (with the required plugins).
4. Build the package.
5. Publish the package to pypi.

The publishing process does not require the use of any credentials or
keys as it utilizes Pypi's "Trusted Publishing" support. See also:
https://docs.pypi.org/trusted-publishers/.

Author: amCap1712

.github/workflows/publish.yml

@@ -0,0 +1,25 @@
+name: Continuous Delivery
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/mbdata
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - uses: snok/install-poetry@v1
+        with:
+          plugins: |
+            poetry-dynamic-versioning[plugin]
+      - run: poetry build
+      - uses: pypa/gh-action-pypi-publish@release/v1

DEVELOPMENT.rst

@@ -28,16 +28,6 @@ Release a new version
 
 1. Add notes to ``CHANGELOG.rst``
 
-2. Tag the repository::
+2. Create a new Github release.
 
-    git tag -s vX.Y.Z
-
-3. Build the package::
-
-   poetry build
-
-4. Upload the package to PyPI::
-
-    rm -rf dist/
-    python setup.py sdist
-    twine upload dist/mbdata-*.tar.gz
+3. The publish workflow will build a new package distribution and upload it to pypi.