deps: actions/checkout action to v4 (#178)

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

.github/actions/init/action.yml

@@ -14,7 +14,7 @@ runs:
     # 2. pnpm/action-setup (so the cache is available to actions/setup-node)
     # 3. actions/setup-node
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
         token: ${{ inputs.token }}