ci: bump actions/checkout to v4

Author: checkout‑bot

.github/workflows/release.branch.yml

@@ -11,7 +11,7 @@ jobs:
     if: startsWith(github.ref, 'refs/heads/release-')
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/release.pr.merge.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event.pull_request.merged == true && startsWith(github.event.pull_request.head.ref, 'release-')
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
           ref: release

.github/workflows/update-beta-packages.yml

@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/setup-node@v3
         with:

.github/workflows/update-packages.yml

@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/setup-node@v3
         with: