Bump NAudio from 1.10.0 to 2.1.0 in /analyzer

Bumps [NAudio](https://github.com/naudio/NAudio) from 1.10.0 to 2.1.0.
- [Release notes](https://github.com/naudio/NAudio/releases)
- [Changelog](https://github.com/naudio/NAudio/blob/master/RELEASE_NOTES.md)
- [Commits](naudio/NAudio@v1.10.0...v2.1.0)

---
updated-dependencies:
- dependency-name: NAudio
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

analyzer/src/SigQual.Analyzer.csproj

@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="DtmfDetection.NAudio" Version="1.2.2" />
-    <PackageReference Include="NAudio" Version="1.10.0" />
+    <PackageReference Include="NAudio" Version="2.1.0" />
   </ItemGroup>
 
 </Project>