chore(deps): update dependency microsoft.codeanalysis.csharp to v4.5.0

Author: renovate[bot]

Tests/Helpers/Testably.Abstractions.Tests.SourceGenerator/Testably.Abstractions.Tests.SourceGenerator.csproj

@@ -8,7 +8,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" PrivateAssets="all" />
+		<PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.5.0" PrivateAssets="all" />
 		<PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
 	</ItemGroup>