Bump actions/checkout from 3.1.0 to 4.2.1

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.1.0 to 4.2.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3.1.0...v4.2.1)

---
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/dotnetcore.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-20.04
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v4.2.1
       - uses: actions/[email protected]
         with:
           dotnet-version: '6.0'
@@ -34,7 +34,7 @@ jobs:
         runtime: [linux-x64, linux-musl-x64, linux-arm, linux-arm64, win-x64, win-x86, win-arm, win-arm64, osx-x64, osx-arm64]
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v4.2.1
       - uses: actions/[email protected]
         with:
           dotnet-version: '6.0'
@@ -58,7 +58,7 @@ jobs:
     timeout-minutes: 30
 
     steps:
-    - uses: actions/checkout@v3.1.0
+    - uses: actions/checkout@v4.2.1
     - uses: actions/[email protected]
       with:
         dotnet-version: '6.0'

.github/workflows/release.yml

@@ -34,7 +34,7 @@ jobs:
       # Used by the release-osx-arm64 job to upload the osx-arm64 binary
       release_upload_url: ${{ steps.create_release.outputs.upload_url }}
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v4.2.1
       - uses: actions/[email protected]
         with:
           dotnet-version: '6.0'
@@ -178,7 +178,7 @@ jobs:
     runs-on: macos-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v4.2.1
       - uses: actions/[email protected]
         with:
           dotnet-version: '6.0'