chore: simplify the release process

.github/maintainers_guide.md

@@ -10,14 +10,14 @@ this project. If you use this package within your own software as is but don't p
 
 We recommend using [pyenv](https://github.com/pyenv/pyenv) for Python runtime management. If you use macOS, follow the following steps:
 
-```zsh
+```sh
 brew update
 brew install pyenv
 ```
 
 Install necessary Python runtimes for development/testing. You can rely on GitHub Actions for testing with various major versions.
 
-```zsh
+```sh
 pyenv install -l | grep -v "-e[conda|stackless|pypy]"
 
 pyenv install 3.9.18 # select the latest patch version
@@ -34,7 +34,7 @@ pyenv rehash
 
 Then, you can create a new Virtual Environment this way:
 
-```zsh
+```sh
 python -m venv env_3.9.18
 source env_3.9.18/bin/activate
 ```
@@ -49,38 +49,38 @@ If you make some changes to this project, please write corresponding unit tests
 
 If this is your first time to run tests, although it may take a bit longer, running the following script is the easiest.
 
-```zsh
+```sh
 ./scripts/install_and_run_tests.sh
 ```
 
 To simply install all the development dependencies for this project.
 
-```zsh
+```sh
 ./scripts/install.sh
 ```
 
 Once you installed all the required dependencies, you can use the following.
 
-```zsh
+```sh
 ./scripts/run_tests.sh
 ./scripts/run_tests.sh tests/scenario_test/test_get_hooks.py
 ```
 
 To format this project
 
-```zsh
+```sh
 ./scripts/format.sh
 ```
 
 To lint this project
 
-```zsh
+```sh
 ./scripts/lint.sh
 ```
 
 This project uses [mypy](https://mypy.readthedocs.io/en/stable/index.html) to check and infers types for your Python code.
 
-```zsh
+```sh
 ./scripts/run_mypy.sh
 ```
 
@@ -92,7 +92,7 @@ If you want to test the package locally you can.
 
    - Run
 
-     ```zsh
+     ```sh
      scripts/build_pypi_package.sh
      ```
 
@@ -103,7 +103,7 @@ If you want to test the package locally you can.
    - Example `/dist/slack_cli_hooks-1.2.3-py2.py3-none-any.whl` was created
    - From anywhere on your machine you can install this package to a project with
 
-     ```zsh
+     ```sh
      pip install <project path>/dist/slack_cli_hooks-1.2.3-py2.py3-none-any.whl
      ```
 
@@ -113,13 +113,22 @@ If you want to test the package locally you can.
 
 [TestPyPI](https://test.pypi.org/) is a separate instance of the Python Package
 Index that allows you to try distribution tools and processes without affecting
-the real index. This is useful with changes that relate to the package itself,
-example the contents of the `pyproject.toml`
+the real index. This is particularly useful when making changes related to the
+package configuration itself, for example, modifications to the `pyproject.toml` file.
 
-The following can be used to deploy this project on <https://test.pypi.org/>.
+You can deploy this project to TestPyPI using GitHub Actions.
 
-```zsh
+To deploy using GitHub Actions:
 
+1. Push your changes to a branch or tag
+2. Navigate to <https://github.com/slackapi/python-slack-hooks/actions/workflows/pypi-release.yml>
+3. Click on "Run workflow"
+4. Select your branch or tag from the dropdown
+5. Click "Run workflow" to build and deploy your branch to TestPyPI
+
+Alternatively, you can deploy from your local machine with:
+
+```sh
 ./scripts/deploy_to_test_pypi.sh
 ```
 

.github/release.yml

@@ -0,0 +1,24 @@
+# https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes#configuring-automatically-generated-release-notes
+changelog:
+  categories:
+    - title: 🚀 Enhancements
+      labels:
+        - enhancement
+    - title: 🐛 Bug Fixes
+      labels:
+        - bug
+    - title: 📚 Documentation
+      labels:
+        - docs
+    - title: 🤖 Build
+      labels:
+        - build
+    - title: 🧪 Testing/Code Health
+      labels:
+        - code health
+    - title: 🔒 Security
+      labels:
+        - security
+    - title: 📦 Other changes
+      labels:
+        - "*"

.github/workflows/pypi-release.yml

@@ -0,0 +1,85 @@
+name: Upload A Release to pypi.org or test.pypi.org
+
+on:
+  release:
+    types:
+      - published
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: "Dry run (build only, do not publish)"
+        required: false
+        type: boolean
+        default: false
+
+jobs:
+  release-build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+
+      - name: Set up Python
+        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        with:
+          python-version: "3.x"
+
+      - name: Build release distributions
+        run: |
+          scripts/build_pypi_package.sh
+
+      - name: Persist dist folder
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-dist
+          path: dist/
+
+  test-pypi-publish:
+    runs-on: ubuntu-latest
+    needs:
+      - release-build
+    if: github.event_name == 'workflow_dispatch' && !github.event.inputs.dry_run
+    environment:
+      name: testpypi
+    permissions:
+      id-token: write
+
+    steps:
+      - name: Retrieve dist folder
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
+        with:
+          name: release-dist
+          path: dist/
+
+      - name: Publish release distributions to test.pypi.org
+        # Using OIDC for PyPI publishing (no API tokens needed)
+        # See: https://docs.github.com/en/actions/how-tos/secure-your-work/security-harden-deployments/oidc-in-pypi
+        uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0
+        with:
+          repository-url: https://test.pypi.org/legacy/
+
+  pypi-publish:
+    runs-on: ubuntu-latest
+    needs:
+      - release-build
+    if: github.event_name == 'release'
+    environment:
+      name: pypi
+    permissions:
+      id-token: write
+
+    steps:
+      - name: Retrieve dist folder
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
+        with:
+          name: release-dist
+          path: dist/
+
+      - name: Publish release distributions to test.pypi.org
+        # Using OIDC for PyPI publishing (no API tokens needed)
+        # See: https://docs.github.com/en/actions/how-tos/secure-your-work/security-harden-deployments/oidc-in-pypi
+        uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0