add black action

Author: untitaker

.github/workflows/black.yml

@@ -0,0 +1,28 @@
+name: black
+
+on:
+  pull_request:
+    paths:
+      - '**.py'
+
+jobs:
+  format:
+    runs-on: ubuntu-16.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+
+      - name: Install Black
+        run: pip install -r linter-requirements.txt
+
+      - name: Run Black
+        run: black tests examples sentry_sdk
+
+      - name: Commit changes
+        run: |
+          git config --global user.name 'sentry-bot'
+          git config --global user.email '[email protected]'
+          git commit -am "fix: Formatting"
+          git push