Merge pull request #95 from buildkite-plugins/renovate/actions-checkout-5.x

chore(deps): update actions/checkout action to v5

Author: JoeColeman95

.github/workflows/publish.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0