[deploy] fix docker image version output

Author: capcom6

.github/workflows/docker-build.yml

@@ -13,7 +13,7 @@ on:
         required: true
     outputs:
       app-version:
-        value: ${{ jobs.build.outputs.app-version }}
+        value: ${{ jobs.merge.outputs.app-version }}
 
 env:
   DOCKERHUB_REPO: capcom6/${{ inputs.app-name }}
@@ -31,8 +31,6 @@ jobs:
           - linux/arm64
     permissions:
       packages: write
-    outputs:
-      app-version: ${{ steps.meta.outputs.version }}
 
     steps:
       - name: Prepare
@@ -41,7 +39,6 @@ jobs:
           echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
 
       - name: Docker meta
-        id: meta
         uses: docker/metadata-action@v5
         with:
           images: |
@@ -106,6 +103,9 @@ jobs:
     runs-on: ubuntu-latest
     needs:
       - build
+    outputs:
+      app-version: ${{ steps.meta.outputs.version }}
+
     steps:
       - name: Download digests
         uses: actions/download-artifact@v4