FIX(docker): fix docker/metadata-action prefix

- Match prefix with extraction logic
- Fix image tag generation

.github/workflows/build.yml

@@ -51,7 +51,7 @@ jobs:
             type=ref,event=pr
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
-            type=sha,prefix={{branch}}-
+            type=sha,prefix={{branch}}-sha-,format=long
             type=raw,value=latest,enable={{is_default_branch}}
 
       - name: Build and push Docker image