Add prefix to image tag in GitHub action

Author: TheDevtop

.github/workflows/build-oci.yml

@@ -55,7 +55,7 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
-            type=semver,pattern={{major}}.{{minor}},event=tag
+            type=semver,prefix=v,pattern={{major}}.{{minor}},event=tag
             type=raw,value=latest,event=tag
 
       # Build and push Docker image with Buildx (don't push on PR)