bugfix ci typo. plural "platforms" for specifying multiple platforms.

Author: PathToLife

Diff for: .github/workflows/releases.yml

@@ -67,7 +67,7 @@ jobs:
         tags: ${{ steps.image-metadata.outputs.tags }}
         labels: ${{ steps.image-metadata.outputs.labels }}
         containerfiles: ./Dockerfile
-        platform: linux/amd64, linux/arm64, linux/arm/v7
+        platforms: linux/amd64, linux/arm64, linux/arm/v7
         oci: true
         # enable build layer caching between platforms
         layers: true