Update the GH Actions workflow to run pre-commit

.github/workflows/run_precommit.yml

@@ -0,0 +1,33 @@
+name: Run pre-commit
+
+on: [push, pull_request]
+
+jobs:
+  run_precommit:
+    name: Run pre-commit
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checkout repository
+      - uses: actions/checkout@v2
+
+      # Setup Python and install pre-commit
+      - uses: actions/setup-python@v2
+        with:
+          python_version: "3.8"
+      - name: Install pre-commit
+        run: |
+          pip install -U pre-commit
+
+      # Load cached pre-commit environment
+      - name: set PY
+        run: echo "PY=$(python -VV | sha256sum | cut -d' ' -f1)" >> $GITHUB_ENV
+      - uses: actions/cache@v2
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
+
+      # Run pre-commit
+      - name: Run pre-commit
+        run: |
+          pre-commit run --show-diff-on-failure --color=never --all-files --verbose