New comment by ezag on void-packages repository

https://github.com/void-linux/void-packages/pull/35713#issuecomment-1172210437

Comment:
Regarding the currently broken build:

```
"/builddir/CKAN-1.30.4/CKAN.sln" (Build target) (1) ->
"/builddir/CKAN-1.30.4/Core/CKAN-core.csproj" (default target) (2) ->
(ResolveAssemblyReferences target) -> 
  /usr/lib/mono/msbuild/Current/bin/Microsoft.Common.CurrentVersion.targets(2101,5): error MSB3248: Parameter "AssemblyFiles" has invalid value "/usr/lib/mono/4.5-api/mscorlib.dll". Could not load file or assembly 'System.Reflection.Metadata, Version=1.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. [/builddir/CKAN-1.30.4/Core/CKAN-core.csproj]
"/builddir/CKAN-1.30.4/CKAN.sln" (Build target) (1) ->
"/builddir/CKAN-1.30.4/AutoUpdate/CKAN-autoupdate.csproj" (default target) (3) ->
  /usr/lib/mono/msbuild/Current/bin/Microsoft.Common.CurrentVersion.targets(2101,5): error MSB3248: Parameter "AssemblyFiles" has invalid value "/usr/lib/mono/4.5-api/mscorlib.dll". Could not load file or assembly 'System.Reflection.Metadata, Version=1.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. [/builddir/CKAN-1.30.4/AutoUpdate/CKAN-autoupdate.csproj]
```

There is a thread related to this issue: https://github.com/KSP-CKAN/CKAN/issues/3361

I'm going to try upgrading [msbuild-bin](https://github.com/void-linux/void-packages/blob/master/srcpkgs/msbuild-bin/template) from 16.6 to 16.9 so that is does match the current 6.12 [mono](https://github.com/void-linux/void-packages/blob/master/srcpkgs/mono/template) version according to the official [Mono Versioning](https://www.mono-project.com/docs/about-mono/versioning/#mono-source-versioning) table, and see if that will fix the issue.