excluding release branch from build CI

Author: nkitsaini

.github/workflows/build_apk.yaml

@@ -6,7 +6,7 @@ name: CI
 on:
   # Triggers the workflow on push or pull request events but only for the "main" branch
   push:
-    branches: [ "**" ]
+    branches: [ "**", "!release" ]
   pull_request:
     branches: [ "main" ]