chore(deps): update all rosyln to 5.9.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
Microsoft.CodeAnalysis.CSharp	5.6.0 → 5.9.0
Microsoft.Net.Compilers.Toolset	5.6.0 → 5.9.0

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[github-actions]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ✅ 0 package(s) with incompatible licenses
• ✅ 0 package(s) with invalid SPDX license definitions
• ⚠️ 3 package(s) with unknown licenses.

See the Details below.

License Issues

src/ReactiveUI.VetuviemSample.BlazorApp/ReactiveUI.VetuviemSample.BlazorApp.csproj

Package	Version	License	Issue Type
Microsoft.CodeAnalysis.CSharp	5.9.0	Null	Unknown License

src/Vetuviem.SourceGenerator/Vetuviem.SourceGenerator.csproj

Package	Version	License	Issue Type
Microsoft.CodeAnalysis.CSharp	5.9.0	Null	Unknown License

src/Vetuviem.Testing/Vetuviem.Testing.csproj

Package	Version	License	Issue Type
Microsoft.CodeAnalysis.CSharp	5.9.0	Null	Unknown License

OpenSSF Scorecard

Package	Version	Score	Details
nuget/Microsoft.CodeAnalysis.CSharp	5.9.0	🟢 5.6	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 16 issue activity found in the last 90 days -- score normalized to 10 CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Security-Policy 🟢 10 security policy file detected License 🟢 10 license file detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Signed-Releases ⚠️ -1 no releases found Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0 Binary-Artifacts ⚠️ 0 binaries present in source code Pinned-Dependencies 🟢 8 dependency not pinned by hash detected -- score normalized to 8 Fuzzing ⚠️ 0 project is not fuzzed
nuget/Microsoft.CodeAnalysis.CSharp	5.9.0	🟢 5.6	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 16 issue activity found in the last 90 days -- score normalized to 10 CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Security-Policy 🟢 10 security policy file detected License 🟢 10 license file detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Signed-Releases ⚠️ -1 no releases found Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0 Binary-Artifacts ⚠️ 0 binaries present in source code Pinned-Dependencies 🟢 8 dependency not pinned by hash detected -- score normalized to 8 Fuzzing ⚠️ 0 project is not fuzzed
nuget/Microsoft.CodeAnalysis.CSharp	5.9.0	🟢 5.6	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 16 issue activity found in the last 90 days -- score normalized to 10 CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Security-Policy 🟢 10 security policy file detected License 🟢 10 license file detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Signed-Releases ⚠️ -1 no releases found Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0 Binary-Artifacts ⚠️ 0 binaries present in source code Pinned-Dependencies 🟢 8 dependency not pinned by hash detected -- score normalized to 8 Fuzzing ⚠️ 0 project is not fuzzed

Scanned Files

• src/ReactiveUI.VetuviemSample.BlazorApp/ReactiveUI.VetuviemSample.BlazorApp.csproj
• src/Vetuviem.SourceGenerator/Vetuviem.SourceGenerator.csproj
• src/Vetuviem.Testing/Vetuviem.Testing.csproj