fix multi-arch manifest creation

.github/workflows/central-controller.yaml

@@ -73,6 +73,9 @@ jobs:
     runs-on: gha-runner-x64
     needs: central_controller
     steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      
     - name: GCP Auth
       uses: google-github-actions/auth@v2
       with:
@@ -100,6 +103,6 @@ jobs:
     - name: Create and push multi-arch manifest
       run: |
         docker manifest create us-central1-docker.pkg.dev/zerotier-421eb9/docker-images/central-controller:${{ env.COMMIT_SHORT_SHA }}-${{ steps.branch.outputs.branch_name }} \
-          --amend us-central1-docker.pkg.dev/zerotier-421eb9/docker-images/central-controller:${{ env.COMMIT_SHORT_SHA }}-${{ steps.branch.outputs.branch_name }}-x64 \
+          --amend us-central1-docker.pkg.dev/zerotier-421eb9/docker-images/central-controller:${{ env.COMMIT_SHORT_SHA }}-${{ steps.branch.outputs.branch_name }}-X64 \
           --amend us-central1-docker.pkg.dev/zerotier-421eb9/docker-images/central-controller:${{ env.COMMIT_SHORT_SHA }}-${{ steps.branch.outputs.branch_name }}-ARM64
         docker manifest push us-central1-docker.pkg.dev/zerotier-421eb9/docker-images/central-controller:${{ env.COMMIT_SHORT_SHA }}-${{ steps.branch.outputs.branch_name }}