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

Author: renovate[bot]

.github/workflows/build.yml

@@ -9,7 +9,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v1
         with:

.github/workflows/scip.yml

@@ -5,7 +5,7 @@ jobs:
   index:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Setup Node.js
         uses: actions/setup-node@v2
         with: