chore: update actions/checkout action to v5

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
         node-version: [18, 20, 22]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:
@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Use Node.js 20
         uses: actions/setup-node@v4
         with:
@@ -54,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Use Node.js 20