Update actions/checkout action to v5 (#188)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/pull_request.yml

@@ -15,7 +15,7 @@ jobs:
     if: github.event.pull_request.draft == false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: set up JDK 11
         uses: actions/setup-java@v4
@@ -70,7 +70,7 @@ jobs:
     if: github.event.pull_request.draft == false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: set up JDK 11
         uses: actions/setup-java@v4
@@ -108,7 +108,7 @@ jobs:
     if: github.event.pull_request.draft == false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: set up JDK 11
         uses: actions/setup-java@v4