deps: update actions/checkout action to v5

Author: renovate-bot

.github/workflows/unmanaged_dependency_check.yaml

@@ -5,7 +5,7 @@ jobs:
  unmanaged_dependency_check:
  runs-on: ubuntu-latest
  steps:
- - uses: actions/checkout@v4
+ - uses: actions/checkout@v5
  - uses: actions/setup-java@v4
  with:
  distribution: temurin