Rewrite release workflow in github actions (#135) & bump package version

.github/workflows/release.yml

@@ -0,0 +1,48 @@
+on: workflow_dispatch
+name: Release
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+
+    if: contains('["Legorooj", "bwoodsend", "rokm"]', github.event.actor)
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+
+      - name: Install Dependencies
+        run: python -m pip install -U towncrier twine wheel
+
+      - name: Build & Validate Bundles
+        run: |
+          python setup.py sdist bdist_wheel
+          python -m twine check dist/*
+
+      - name: Build Changelog
+        run: python -m towncrier --yes
+
+      - name: Upload to PyPI
+        env:
+          TWINE_PASSWORD: ${{ secrets.TWINETOKEN }}
+        run: python -m twine upload dist/* --disable-progress-bar -u __token__ --non-interactive
+
+      - name: Create Git Tag
+        run: git tag v$(python setup.py --version)
+
+      - name: Bump version
+        run: python setup.py bump --build
+
+      - name: Commit changes back into the repository
+        run: |
+          git config user.email "[email protected]"
+          git config user.name "github-actions"
+          git add src CHANGELOG.rst
+          git status
+          git commit -m "Release v$(python setup.py --version)"
+          git push && git push --tags
+

src/_pyinstaller_hooks_contrib/__init__.py

@@ -10,6 +10,6 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 # ------------------------------------------------------------------
 
-__version__ = '2021.1'
+__version__ = '2021.2'
 __maintainer__ = 'Legorooj, bwoodsend'
 __uri__ = 'https://github.com/pyinstaller/pyinstaller-hooks-contrib'