Updated dependencies

Author: egil

src/bunit.core/bunit.core.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Razor">
+<Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
     <TargetFramework>netstandard2.1</TargetFramework>

src/bunit.xunit/bunit.xunit.csproj

@@ -36,8 +36,8 @@
 		<PackageReference Include="Microsoft.Extensions.Logging" Version="3.1.1" />
 		<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="3.1.1" />
 		<PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
-		<PackageReference Include="SourceFileFinder" Version="1.0.0-alpha-4" />
-		<PackageReference Include="System.Reflection.Metadata" Version="1.8.0" />
+		<PackageReference Include="SourceFileFinder" Version="1.0.0-preview-1" />
+		<PackageReference Include="System.Reflection.Metadata" Version="1.8.1" />
 		<PackageReference Include="xunit.assert" Version="2.4.0" />
 		<PackageReference Include="xunit.extensibility.core" Version="2.4.0" />
 		<PackageReference Include="xunit.extensibility.execution" Version="2.4.0" />