GH Actions: Bump mondeja/remove-labels-gh-action from 1 to 2

Bumps [mondeja/remove-labels-gh-action](https://github.com/mondeja/remove-labels-gh-action) from 1 to 2.
- [Release notes](https://github.com/mondeja/remove-labels-gh-action/releases)
- [Commits](mondeja/remove-labels-gh-action@v1...v2)

---
updated-dependencies:
- dependency-name: mondeja/remove-labels-gh-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/label-remove-outdated.yml

@@ -17,7 +17,7 @@ jobs:
     name: Clean up labels on issue close
 
     steps:
-      - uses: mondeja/remove-labels-gh-action@v1
+      - uses: mondeja/remove-labels-gh-action@v2
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           labels: |
@@ -33,7 +33,7 @@ jobs:
     name: Clean up labels on PR merge
 
     steps:
-      - uses: mondeja/remove-labels-gh-action@v1
+      - uses: mondeja/remove-labels-gh-action@v2
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           labels: |
@@ -50,7 +50,7 @@ jobs:
     name: Clean up labels on PR close
 
     steps:
-      - uses: mondeja/remove-labels-gh-action@v1
+      - uses: mondeja/remove-labels-gh-action@v2
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           labels: |