build(deps): bump actions/checkout from 3 to 4 (#2379)

.github/workflows/build-multiarch.yml

@@ -111,7 +111,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # for build-files step
           fetch-depth: 0

.github/workflows/verify-pr.yml

@@ -45,7 +45,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # for build-files step
           fetch-depth: 0