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] <support@github.com>

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
  runs-on: ubuntu-latest
  steps:
  - name: Checkout
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Setup .NET SDK
  uses: actions/setup-dotnet@v3
  with:
@@ -40,7 +40,7 @@ jobs:
  runs-on: ubuntu-latest
  steps:
  - name: Checkout
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Setup .NET SDK
  uses: actions/setup-dotnet@v3
  with:
@@ -72,7 +72,7 @@ jobs:
  needs: build-nuget
  steps:
  - name: Checkout
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Get version
  id: get-version
  run: echo "version=$((Select-Xml -Path ./ParquetSharp.DataFrame/ParquetSharp.DataFrame.csproj -XPath '/Project/PropertyGroup/Version/text()').node.Value)" >> $env:GITHUB_OUTPUT
@@ -127,7 +127,7 @@ jobs:
  needs: all-required-checks-done
  steps:
  - name: Checkout
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Check version
  id: check-version
  shell: pwsh