Adding a Pull Request Labeler workflow (#2503)

* Added a Pull Request Labeler workflow

This workflow will add labels based on the PR file path changes

* Update .github/workflows/pr-labeler.yml

Co-authored-by: Joseph Flinn <58369717+joseph-flinn@users.noreply.github.com>

---------

Co-authored-by: Joseph Flinn <58369717+joseph-flinn@users.noreply.github.com>

.github/labeler.yml

@@ -0,0 +1,17 @@
+android:
+- src/Core/*
+- src/Android/*
+
+iOS:
+- src/Core/*
+- lib/ios/*
+- src/iOS/*
+- src/iOS.Autofill/*
+- src/iOS.Core/*
+- src/iOS.Extension/*
+- src/iOS.ShareExtension/*
+- src/iOS.Widget/*
+- src/watchOS/*
+
+watchOS:
+- src/watchOS/*

.github/workflows/pr-labeler.yml

@@ -0,0 +1,17 @@
+---
+name: "Pull Request Labeler"
+
+on:
+  pull_request_target: {}
+
+jobs:
+  labeler:
+    name: "Pull Request Labeler"
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/labeler@ba790c862c380240c6d5e7427be5ace9a05c754b  # v4.0.3
+        with:
+          sync-labels: true