Bump PGCG.commonItems.SourceGenerators from 1.0.5 to 1.0.6

Bumps [PGCG.commonItems.SourceGenerators](https://github.com/ParadoxGameConverters/PGCG.commonItems.SourceGenerators) from 1.0.5 to 1.0.6.
- [Commits](ParadoxGameConverters/PGCG.commonItems.SourceGenerators@1.0.5...1.0.6)

---
updated-dependencies:
- dependency-name: PGCG.commonItems.SourceGenerators
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

commonItems.UnitTests/commonItems.UnitTests.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="PGCG.commonItems.SourceGenerators" Version="1.0.5" />
+    <PackageReference Include="PGCG.commonItems.SourceGenerators" Version="1.0.6" />
     <PackageReference Include="coverlet.msbuild" Version="6.0.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>