Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/actionlint.yml

@@ -9,7 +9,7 @@ jobs:
     name: runner / actionlint
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5.0.0
 
       - name: actionlint
         uses: reviewdog/action-actionlint@v1.66.0

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
     runs-on: ${{ matrix.ghimage }}
 
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5.0.0
 
       - run: |
           echo > targets.txt

.github/workflows/review.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ${{ matrix.ghimage }}
 
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5.0.0
 
       - run: |
           echo > targets.txt