chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/pull-request.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - id: build-project
         name: Build

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
       packages: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - id: build-project
         name: Build