use System.Collections.Immutable 5.0.0

work-around for assembly mismatch and missing method exception when building in environments that have System.Collections.Immutable 5.0.0 loaded at source generator runtime

Author: shuebner

XmlSchemaClassGenerator.SourceGenerator/XmlSchemaClassGenerator.SourceGenerator.csproj

@@ -38,7 +38,7 @@
     <PackageReference Include="System.Text.Encoding.CodePages" Version="6.0.0" PrivateAssets="all" GeneratePathProperty="true" />
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="6.0.0" PrivateAssets="all" GeneratePathProperty="true" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" PrivateAssets="all" GeneratePathProperty="true" />
-    <PackageReference Include="System.Collections.Immutable" Version="6.0.0" PrivateAssets="all" GeneratePathProperty="true" />
+    <PackageReference Include="System.Collections.Immutable" Version="5.0.0" PrivateAssets="all" GeneratePathProperty="true" />
     <PackageReference Include="System.Memory" Version="4.5.4" PrivateAssets="all" GeneratePathProperty="true" />
   </ItemGroup>
 

XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj

@@ -48,7 +48,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
-    <PackageReference Include="System.Collections.Immutable" Version="6.0.0" />
+    <PackageReference Include="System.Collections.Immutable" Version="5.0.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="6.0.0" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>