chore(deps): update actions/checkout action to v5 (#378)

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

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -7,7 +7,7 @@ jobs:
   build-and-deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           # fetch whole history (needed for blog article creation time to work correctly)
           fetch-depth: 0

.github/workflows/sync-articles-with-3rd-party.yml

@@ -6,7 +6,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: pnpm/[email protected]
       - name: Use Node.js
         uses: actions/setup-node@v4

.github/workflows/test-build.yml

@@ -4,7 +4,7 @@ jobs:
   test-build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: pnpm/[email protected]
       - name: Use Node.js
         uses: actions/setup-node@v4