scratch ci workflow

.github/workflows/branch-scratch.yml

@@ -10,10 +10,19 @@ on:
 
 jobs:
   get-short-tag:
-    id: get-short-tag
     runs-on: ubuntu-latest
     steps:
       - name: save short tag to environment
         run: echo "short_tag=$(echo ${{ github.event.inputs.tag }} | head -c 8 )" >> $GITHUB_ENV
       - name: echo env var
         run: echo "${{ github.env.short_tag }}"
+  arm64:
+    runs-on: arm64
+    steps:
+      - name: echo env var
+        run: echo "${{ github.env.short_tag }}"
+  amd64:
+    runs-on: amd64
+    steps:
+      - name: echo env var
+        run: echo "${{ github.env.short_tag }}"