Fix GitHub Actions workflow for pre-commit checks

Author: tumf

.github/workflows/pre-commit.yml

@@ -14,7 +14,12 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: '3.x'
+      - name: Install shfmt
+        run: |
+          curl -L https://github.com/mvdan/sh/releases/download/v3.8.0/shfmt_v3.8.0_linux_amd64 -o /tmp/shfmt
+          chmod +x /tmp/shfmt
+          sudo mv /tmp/shfmt /usr/local/bin/shfmt
       - uses: pre-commit/action@v3.0.0
         with:
-          entry: pre-commit run --all-files
+          extra_args: --all-files