Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/pr-build.yml

@@ -4,7 +4,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
           distribution: 'zulu'

.github/workflows/release.yml

@@ -7,7 +7,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
           distribution: 'zulu'