feat: add LeetCode folder labeler (#1191)

* add labeler for Leetcode changes folder

* Update labeler.yml

add end line

Co-authored-by: David Leal <halfpacho@gmail.com>

.github/labeler.yml

@@ -0,0 +1,2 @@
+Leetcode folder changes:
+- leetcode/**/*

.github/workflows/labeler.yml

@@ -0,0 +1,14 @@
+name: "Pull Request Labeler"
+on:
+- pull_request_target
+
+jobs:
+  triage:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@v4
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"