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

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/refresh-checksmd.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest # windows-latest | macos-latest
     name: Test changed-files
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # OR "2" -> To retrieve the preceding commit.
 

.github/workflows/size.yaml

@@ -9,7 +9,7 @@ jobs:
   update_labels:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions-ecosystem/action-size@v2
         id: size