CI: actions/checkout v4 to v5

Author: luojiyin1987

.github/workflows/main.yml

@@ -13,7 +13,7 @@ jobs:
         permissions:
             contents: write
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v5
 
             - uses: pnpm/action-setup@v4
               with:

.github/workflows/pull-request.yml

@@ -13,7 +13,7 @@ jobs:
         permissions:
             contents: write
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v5
               if: ${{ env.VERCEL_TOKEN && env.VERCEL_ORG_ID && env.VERCEL_PROJECT_ID }}
 
             - name: Deploy to Vercel