gh action uses 6.1 runtime

Author: RajSolai

.github/workflows/flatpak-build.yml

@@ -12,7 +12,7 @@ jobs:
 
     # This job runs in a special container designed for building Flatpaks for AppCenter
     container:
-      image: ghcr.io/elementary/flatpak-platform/runtime:6
+      image: ghcr.io/elementary/flatpak-platform/runtime:6.1
       options: --privileged
 
     # Steps represent a sequence of tasks that will be executed as part of the job