fix: add line break to gradle.properties for template testing

Author: hurali97

.github/workflows/e2e-android-templateapp.yml

@@ -66,7 +66,7 @@ jobs:
 
           echo "Feed maven local to gradle.properties"
           cd /tmp/RNTestProject
-          echo "react.internal.mavenLocalRepo=$MAVEN_LOCAL" >> android/gradle.properties
+          echo "\nreact.internal.mavenLocalRepo=$MAVEN_LOCAL" >> android/gradle.properties
 
           # Build
           cd android

scripts/release-testing/test-release-local.js

@@ -292,7 +292,7 @@ async function testRNTestProject(
 
   // need to do this here so that Android will be properly setup either way
   exec(
-    `echo "react.internal.mavenLocalRepo=${mavenLocalPath}" >> android/gradle.properties`,
+    `echo "\nreact.internal.mavenLocalRepo=${mavenLocalPath}" >> android/gradle.properties`,
   );
 
   // Only build the simulator architecture. CI is however generating only that one.