Add jitterbit for getting changed file and run lint

Signed-off-by: Ryan Liang <[email protected]>

.github/workflows/lint.yml

@@ -48,15 +48,24 @@ jobs:
         run:
           yarn osd bootstrap
 
-      - name: lint code base
-        working-directory: OpenSearch-Dashboards/plugins/${{ env.PLUGIN_NAME }}
+      # Step to get changed files
+      - name: Get changed files
+        id: changed-files
+        uses: jitterbit/get-changed-files@v1
+        with:
+          format: 'json'
+
+      # Step to lint changed JavaScript/TypeScript files
+      - name: Lint changed files
         run: |
-          git fetch origin main
-          CHANGED_FILES=$(git diff --name-only --diff-filter=ACMRTUXB origin/main | grep -E "\.(js|ts|tsx)$")
-          echo "here is the changed files: " $CHANGED_FILES
+          # Extract changed files as JSON
+          CHANGED_FILES_JSON='${{ steps.changed-files.outputs.all }}'
+          # Convert JSON to array of file paths
+          CHANGED_FILES=$(echo $CHANGED_FILES_JSON | jq -r '.[]' | grep -E "\.(js|ts|tsx)$")
+          echo "Changed JavaScript/TypeScript files:"
+          echo $CHANGED_FILES
           if [ -n "$CHANGED_FILES" ]; then
             echo "Linting changed files..."
             yarn lint $CHANGED_FILES
           else
             echo "No JavaScript/TypeScript files changed."
-          fi