chore: add iOS and macOS paths to e2e tests pipeline triggers

Author: SelaseKay

.github/workflows/e2e_tests_pipeline.yaml

@@ -18,6 +18,8 @@ on:
     paths:
       - 'packages/cloud_firestore/cloud_firestore/pipeline_example/**'
       - 'packages/cloud_firestore/cloud_firestore/lib/**'
+      - 'packages/cloud_firestore/cloud_firestore/ios/**'
+      - 'packages/cloud_firestore/cloud_firestore/macos/**'
       - '.github/workflows/e2e_tests_pipeline.yaml'
 
 jobs: