💚 update workflows

Author: BirjuVachhani

.github/workflows/firebase-hosting-merge.yml

@@ -1,8 +1,14 @@
 name: Deploy to Firebase Hosting on merge
-'on':
+
+on:
   push:
+    paths:
+      - '**.dart'
+      - '**.yaml'
+      - '**.yml'
     branches:
       - main
+
 jobs:
   build_and_deploy:
     runs-on: ubuntu-latest

.github/workflows/firebase-hosting-pull-request.yml

@@ -1,5 +1,7 @@
 name: Deploy to Firebase Hosting on PR
-'on': pull_request
+
+on: pull_request
+
 jobs:
   build_and_preview:
     if: '${{ github.event.pull_request.head.repo.full_name == github.repository }}'