Create reviewdog.yml

Adding reviewdog-workflow with shellcheck.

.github/workflows/reviewdog.yml

@@ -0,0 +1,23 @@
+name: reviewdog
+on: [pull_request]
+permissions:
+  contents: read
+  id-token: write
+  issues: write
+  pull-requests: write
+jobs:
+  shellcheck:
+    name: runner / shellcheck
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: shellcheck
+        uses: reviewdog/action-shellcheck@v1
+        with:
+          github_token: ${{ secrets.github_token }}
+          reporter: github-pr-review # Change reporter.
+          path: "." # Optional.
+          #pattern: "*.sh" # Optional.
+          exclude: "./.git/*" # Optional.
+          check_all_files_with_shebangs: "true" # Optional.
+          fail_on_error: "true"