Update build.yml

Signed-off-by: Henrique Graca <999396+hjgraca@users.noreply.github.com>

Author: hjgraca

.github/workflows/build.yml

@@ -4,11 +4,11 @@ on:
   push:
     paths:
       - "libraries/**"
-    branches: [develop, main]
+    branches: [develop]
   pull_request:
     paths:
       - "libraries/**"
-    branches: [develop, main]
+    branches: [develop]
 
 defaults:
   run:
@@ -49,4 +49,4 @@ jobs:
           fail_ci_if_error: false
           name: codecov-lambda-powertools-dotnet
           verbose: true
-          directory: ./libraries/codecov
+          directory: ./libraries/codecov