chore(deps): bump coverlet.msbuild (#97)

Bumps [coverlet.msbuild](https://github.com/coverlet-coverage/coverlet) from 2.9.0-preview-0001-gfa138c0e00 to 2.9.0.
- [Release notes](https://github.com/coverlet-coverage/coverlet/releases)
- [Commits](https://github.com/coverlet-coverage/coverlet/commits)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

src/Speedygeek.ZendeskAPI.UnitTests/Speedygeek.ZendeskAPI.UnitTests.csproj

@@ -17,7 +17,7 @@
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="1.3.0" PrivateAssets="all" />
     <PackageReference Include="Codecov" Version="1.10.0" PrivateAssets="all" />
-    <PackageReference Include="coverlet.msbuild" Version="2.9.0-preview-0001-gfa138c0e00" PrivateAssets="all"/>
+    <PackageReference Include="coverlet.msbuild" Version="2.9.0" PrivateAssets="all"/>
     <PackageReference Include="Moq" Version="4.14.1" />
   </ItemGroup>