fix branch names in workflow file

Former-commit-id: 3a3d418

Author: motatoes

.github/workflows/backend_build_test_ecr.yml

@@ -1,7 +1,7 @@
 name: Backend Build&Push to Test ECR
 on:
   push:
-    branches: [ 'main', 'feat/*' ]
+    branches: [ 'develop', 'feat/*' ]
 
 permissions:
   id-token: write

.github/workflows/backend_test.yml

@@ -1,10 +1,9 @@
 name: Backend Go Tests
 on:
   push:
-    branches: [ main ]
-    paths: [ "backend/**", "libs/**"]
+    branches: [ develop ]
   pull_request:
-    paths: [ "backend/**", "libs/**"]
+
 jobs:
 
   build: