Add yamlfmt precommit hook (#2584)

Co-authored-by: Shuchang Zheng <wintonzheng0325@gmail.com>

.github/workflows/build-docker-image.yml

@@ -1,42 +1,34 @@
 name: Build Docker Image and Push to ECR
-
 on:
   release:
-    types: [ published ]
-
+    types: [published]
 env:
   AWS_REGION: us-east-1
   ECR_BACKEND_REPOSITORY: skyvern
   ECR_UI_REPOSITORY: skyvern-ui
   REGISTRY_ALIAS: skyvern # t6d4b5t4 
-
 jobs:
   run-ci:
     uses: ./.github/workflows/ci.yml
-
   build-docker-image:
     runs-on: ubuntu-latest
-    needs: [ run-ci ]
+    needs: [run-ci]
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v4
-      
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v4
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
           aws-region: ${{ env.AWS_REGION }}
-      
       - name: Login to Amazon ECR Public
         id: login-ecr-public
         uses: aws-actions/amazon-ecr-login@v2
         with:
           registry-type: public
-          
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
-      
       - name: Build, tag, and push backend image to Amazon Public ECR
         id: build-image
         uses: docker/build-push-action@v2
@@ -52,7 +44,6 @@ jobs:
             ${{ env.ECR_REGISTRY}}/${{ env.REGISTRY_ALIAS }}/${{ env.ECR_BACKEND_REPOSITORY }}:${{ github.sha }}
             ${{ env.ECR_REGISTRY}}/${{ env.REGISTRY_ALIAS }}/${{ env.ECR_BACKEND_REPOSITORY }}:${{ github.event.release.tag_name }}
             ${{ env.ECR_REGISTRY}}/${{ env.REGISTRY_ALIAS }}/${{ env.ECR_BACKEND_REPOSITORY }}:latest
-
       - name: Build, tag, and push ui image to Amazon Public ECR
         id: build-ui-image
         uses: docker/build-push-action@v2