Bump Gu.Roslyn.Extensions.Source from 0.17.0 to 0.17.1

Bumps [Gu.Roslyn.Extensions.Source](https://github.com/GuOrg/Gu.Roslyn.Extensions) from 0.17.0 to 0.17.1.
- [Changelog](https://github.com/GuOrg/Gu.Roslyn.Extensions/blob/master/RELEASE_NOTES.md)
- [Commits](https://github.com/GuOrg/Gu.Roslyn.Extensions/commits)

---
updated-dependencies:
- dependency-name: Gu.Roslyn.Extensions.Source
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

IDisposableAnalyzers/IDisposableAnalyzers.csproj

@@ -135,7 +135,7 @@
 
   <ItemGroup>
     <PackageReference Include="Gu.Analyzers" Version="2.0.3" PrivateAssets="all" />
-    <PackageReference Include="Gu.Roslyn.Extensions.Source" Version="0.17.0" />
+    <PackageReference Include="Gu.Roslyn.Extensions.Source" Version="0.17.1" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.5.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.507" PrivateAssets="all" />
   </ItemGroup>