Bump Microsoft.SourceLink.GitHub

Bumps [Microsoft.SourceLink.GitHub](https://github.com/dotnet/sourcelink) from 1.0.0 to 1.1.1.
- [Release notes](https://github.com/dotnet/sourcelink/releases)
- [Commits](dotnet/sourcelink@1.0.0...1.1.1)

---
updated-dependencies:
- dependency-name: Microsoft.SourceLink.GitHub
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: tracer/src/Datadog.Trace.OpenTracing/Datadog.Trace.OpenTracing.csproj

@@ -16,7 +16,7 @@
     <ProjectReference Include="..\Datadog.Trace\Datadog.Trace.csproj" />
 
     <PackageReference Include="OpenTracing" Version="0.12.1" />
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All"/>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All"/>
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'netcoreapp3.1' ">

Diff for: tracer/src/Datadog.Trace/Datadog.Trace.csproj

@@ -31,7 +31,7 @@
 
   <ItemGroup>
     <PackageReference Include="LibLog" Version="5.0.8" PrivateAssets="All" />
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">