Fix the PR labeler action (#2502)

## About The Pull Request

Switch the PR labeler action to use GitHub's built-in action because the
current one has been broken for some time now, changes the "Map
Modification" label config to be "Map Edit".

## Why It's Good For The Game

Broken workflow no good labeled PRs good

## Proof Of Testing

https://github.com/TealSeer/Bubberstation/pull/1 (I had to merge the
workflow change to master to get it to trigger which I then hard reset
so my master wasn't fucked up, so you can't see the config change in
this PR but you can see the action working properly)

</details>

## Changelog

No in game changes

.github/labeler.yml

@@ -1,5 +1,5 @@
 # Changes to anything in the _map subfolder
-Map Modification:
+Map Edit:
 - changed-files:
   - any-glob-to-any-file: '_maps/**'
 

.github/workflows/labeler.yml

@@ -1,13 +1,11 @@
 name: PR Labeling
 on:
-  schedule:
-    - cron: '*/5 * * * *'
+  - pull_request_target
 jobs:
   labeler:
+    permissions:
+      contents: read
+      pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - uses: paulfantom/periodic-labeler@master
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GITHUB_REPOSITORY: ${{ github.repository }}
-          LABEL_MAPPINGS_FILE: .github/labeler.yml
+      - uses: actions/labeler@v5