Bump actions/checkout (facebook#28383)

Author: m-nakamura145

.github/workflows/commit_artifacts.yml

@@ -11,7 +11,7 @@ jobs:
       www_branch_count: ${{ steps.check_branches.outputs.www_branch_count }}
       fbsource_branch_count: ${{ steps.check_branches.outputs.fbsource_branch_count }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: "Check branches"
         id: check_branches
         run: |
@@ -179,7 +179,7 @@ jobs:
     if: ${{ (github.ref == 'refs/heads/main' && needs.download_artifacts.outputs.www_branch_count == '0') || github.ref == 'refs/heads/meta-www' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: builds/facebook-www
       - name: Ensure clean directory
@@ -215,7 +215,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ (github.ref == 'refs/heads/main' && needs.download_artifacts.outputs.fbsource_branch_count == '0') || github.ref == 'refs/heads/meta-fbsource' }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: main
           repository: facebook/react-fbsource-import