add explicit SourceLink.GitHub package reference

Author: matracey

src/SystemTextJson.JsonDiffPatch.MSTest/SystemTextJson.JsonDiffPatch.MSTest.csproj

@@ -15,6 +15,10 @@
     </ItemGroup>
 
     <ItemGroup>
+        <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0">
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+          <PrivateAssets>all</PrivateAssets>
+        </PackageReference>
         <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
     </ItemGroup>
 

src/SystemTextJson.JsonDiffPatch.NUnit/SystemTextJson.JsonDiffPatch.NUnit.csproj

@@ -15,6 +15,10 @@
     </ItemGroup>
 
     <ItemGroup>
+        <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0">
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+          <PrivateAssets>all</PrivateAssets>
+        </PackageReference>
         <PackageReference Include="NUnit" Version="3.12.0" />
     </ItemGroup>
 

src/SystemTextJson.JsonDiffPatch.Xunit/SystemTextJson.JsonDiffPatch.Xunit.csproj

@@ -15,6 +15,10 @@
     </ItemGroup>
 
     <ItemGroup>
+        <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0">
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+          <PrivateAssets>all</PrivateAssets>
+        </PackageReference>
         <PackageReference Include="xunit.assert" Version="2.4.1" />
     </ItemGroup>
 

src/SystemTextJson.JsonDiffPatch/SystemTextJson.JsonDiffPatch.csproj

@@ -11,6 +11,10 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0">
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+          <PrivateAssets>all</PrivateAssets>
+        </PackageReference>
         <PackageReference Include="System.Text.Json" Version="6.0.0" />
     </ItemGroup>