chore(deps): update actions/checkout action to v6 (#214)

automated merge

Author: lunar-renovate

.github/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
   basic-checks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-go@v5
         with:

.github/workflows/release.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event.release.target_commitish }} == 'master'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-go@v5
         with: