Bump altcover from 8.0.815 to 8.3.838

Bumps [altcover](https://github.com/SteveGilham/altcover) from 8.0.815 to 8.3.838.
- [Release notes](https://github.com/SteveGilham/altcover/releases)
- [Changelog](https://github.com/SteveGilham/altcover/blob/master/ReleaseNotes%20-%20Previously.md)
- [Commits](SteveGilham/altcover@release/v8.0.815...release/v8.3.838)

---
updated-dependencies:
- dependency-name: altcover
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

tests/GregsStack.InputSimulatorStandard.Tests/GregsStack.InputSimulatorStandard.Tests.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="altcover" Version="8.0.815" />
+    <PackageReference Include="altcover" Version="8.3.838" />
     <PackageReference Include="HtmlAgilityPack" Version="1.11.30" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
     <PackageReference Include="Moq" Version="4.16.0" />