add check workflow

.github/workflows/fmt.yml

@@ -41,3 +41,61 @@ jobs:
 
       - name: Ensure Cargo.toml dependency tables are sorted
         run: make check-sort
+
+  megalinter:
+    name: MegaLinter
+    runs-on: ubuntu-latest
+
+    # Give the default GITHUB_TOKEN write permission to commit and push, comment
+    # issues & post new PR; remove the ones you do not need
+    permissions:
+      contents: write
+      issues: write
+      pull-requests: write
+
+    steps:
+      # Git Checkout
+      - name: Checkout Code
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.PAT || secrets.GITHUB_TOKEN }}
+
+          # If you use VALIDATE_ALL_CODEBASE = true, you can remove this line to
+          # improve performance
+          fetch-depth: 0
+
+      # MegaLinter
+      - name: MegaLinter
+
+        # You can override MegaLinter flavor used to have faster performances
+        # More info at https://megalinter.io/flavors/
+        uses: oxsecurity/megalinter@v7
+
+        id: ml
+
+        # All available variables are described in documentation
+        # https://megalinter.io/configuration/
+        env:
+          VALIDATE_ALL_CODEBASE: >-
+            ${{
+              github.event_name == 'push' &&
+              contains(fromJSON('["refs/heads/main", "refs/heads/master"]'), github.ref)
+            }}
+
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+          # ADD YOUR CUSTOM ENV VARIABLES HERE OR DEFINE THEM IN A FILE
+          # .mega-linter.yml AT THE ROOT OF YOUR REPOSITORY
+
+          # Uncomment to disable copy-paste and spell checks
+          # DISABLE: COPYPASTE,SPELL
+
+      # Upload MegaLinter artifacts
+      - name: Archive production artifacts
+        uses: actions/upload-artifact@v4
+        if: success() || failure()
+        with:
+          name: MegaLinter reports
+          path: |
+            megalinter-reports
+            mega-linter.log