GitHub Actions(deps): Bump actions/checkout from 4.1.6 to 4.2.1

.github/workflows/ci.yaml

@@ -22,7 +22,7 @@ jobs:
       doc_only: ${{ steps.diff_check.outputs.output }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v4.2.1
         with:
           ref: ${{ github.head_ref }}
           fetch-depth: 2 # fetch last two commits to compare
@@ -54,7 +54,7 @@ jobs:
     steps:
       - name: Checkout code
         if: needs.precheck.outputs.doc_only != 'true'
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v4.2.1
         with:
           ref: staging
 
@@ -106,7 +106,7 @@ jobs:
     steps:
       - name: Checkout code
         if: needs.precheck.outputs.doc_only != 'true'
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v4.2.1
         with:
           ref: staging
 
@@ -189,7 +189,7 @@ jobs:
     needs: review-code
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v4.2.1
         with:
           ref: staging
 

.github/workflows/first-interaction.yaml

@@ -11,7 +11,7 @@ jobs:
   check_for_first_interaction:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v4.2.1
       - uses: actions/first-interaction@main
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/pr-test.yaml

@@ -22,7 +22,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v4.2.1
         with:
           ref: ${{ github.head_ref }}