chore(build): turn on caching

.github/workflows/build.yaml

@@ -3,25 +3,30 @@ name: Build and Push Docker Image
 on:
   push:
     branches:
-      - "main"
+      - main
 
 jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+
       - name: Login to Docker Hub
         uses: docker/login-action@v2
         with:
           username: blombern
           password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - name: Extract short SHA
         run: echo "SHORT_SHA=$(echo ${{ github.sha }} | cut -c 1-7)" >> $GITHUB_ENV
+
       - name: Build and push
         uses: docker/build-push-action@v4
         with:
@@ -30,3 +35,5 @@ jobs:
           tags: |
             ultrasoundorg/mev-analysis:${{ env.SHORT_SHA }}
             ultrasoundorg/mev-analysis:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max