fix tags

Author: seanauff

.github/workflows/build-multiarch.yml

@@ -41,5 +41,5 @@ jobs:
           platforms: linux/amd64,linux/arm64
           push: true
           tags: |
-            ghcr.io/${{ github.repository }}/matrix-rf-bridge:latest
-            ghcr.io/${{ github.repository }}/matrix-rf-bridge:${{ github.sha }}
+            ghcr.io/${{ github.repository }}:latest
+            ghcr.io/${{ github.repository }}:${{ github.sha }}