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

Author: renovate[bot]

.github/workflows/build.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
 
       - name: Install dependencies
         uses: pnpm/action-setup@v2

.github/workflows/release-please.yml

@@ -20,7 +20,7 @@ jobs:
           command: manifest
 
       # The logic below handles the npm publication:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
         # these if statements ensure that a publication only occurs when
         # a new release is created:
         if: ${{ steps.release.outputs.release_created }}