update github action

.github/workflows/docker-image.yml

@@ -3,7 +3,7 @@ name: Build and Push Docker Image to GHCR
 on:
   push:
     tags:
-      - '*' # Trigger on any tag creation
+      - 'v*' # Trigger only on tags that start with 'v'
 
 jobs:
   build:
@@ -22,12 +22,17 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }} # GitHub token is automatically provided
 
+      # Extract version from tag (remove leading 'v')
+      - name: Extract version
+        id: version
+        run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV
+
       # Build the Docker image
       - name: Build Docker image
         run: |
-          docker build -t ghcr.io/${{ github.repository }}/sherpa-api-mock:${{ github.ref_name }} .
+          docker build -t ghcr.io/${{ github.repository }}:${{ env.VERSION }} .
 
       # Push the Docker image to GitHub Container Registry
       - name: Push Docker image
         run: |
-          docker push ghcr.io/${{ github.repository }}/sherpa-api-mock:${{ github.ref_name }}
+          docker push ghcr.io/${{ github.repository }}:${{ env.VERSION }}