Chore(deps): bump actions/setup-dotnet from 5 to 6

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 5 to 6.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](actions/setup-dotnet@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-dotnet
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/dotnet-shared.yml

@@ -44,7 +44,7 @@ jobs:
         repository: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name || github.repository }}
         ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
     - name: Setup .NET
-      uses: actions/setup-dotnet@v5
+      uses: actions/setup-dotnet@v6
       with:
         dotnet-version: '8.0.x'
 

.github/workflows/publish-shared-package.yml

@@ -42,7 +42,7 @@ jobs:
           pwsh -NoLogo -NoProfile -File tools/Assert-PromotionContractAlignment.ps1 -OutputJsonPath tests/results/promotion-contract/publish-shared-alignment.json -StepSummaryPath $env:GITHUB_STEP_SUMMARY
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'
 

.github/workflows/release.yml

@@ -181,7 +181,7 @@ jobs:
           fi
 
       - name: Setup .NET 8
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'