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

deploy/k8s/overlays/prod/kustomization.yaml

@@ -13,7 +13,7 @@ commonLabels:
 # 이미지 태그 설정
 images:
   - name: ghcr.io/mayne0213/portfolio
-    newTag: main-sha-396748a
+    newTag: main-sha-e6c7fecc3a2aee1be95a405860d2985a85fb9312
 
 patchesStrategicMerge:
   - deployment-patch.yaml