ci: Upgrade PR labeler

Adds a new label's category for Pull Request size.
The labels are based on the number of altered lines.

.github/labeler_cfg.yml

@@ -24,3 +24,7 @@ host:
 controller:
   - changed-files:
       - any-glob-to-any-file: nimble/controller/**
+
+CI:
+  - changed-files:
+      - any-glob-to-any-file: .github/workflows/**

.github/workflows/labeler.yml

@@ -19,13 +19,14 @@
 
 name: "Pull Request Labeler"
 on:
-  - pull_request
+  - pull_request_target
 
 jobs:
   labeler:
     permissions:
       contents: read
       pull-requests: write
+      issues: write
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
@@ -36,3 +37,9 @@ jobs:
         with:
           sync-labels: true
           configuration-path: .github/labeler_cfg.yml
+
+      - name: Assign labels based on the PR's size
+        uses: codelytv/[email protected]
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ignore_file_deletions: true