Update Microsoft.SourceLink.GitHub requirement from 1.0.0-* to 1.1.1-* (

#155)

Updates the requirements on [Microsoft.SourceLink.GitHub](https://github.com/dotnet/sourcelink) to permit the latest version.
- [Release notes](https://github.com/dotnet/sourcelink/releases)
- [Commits](dotnet/sourcelink@1.0.0-beta2-19270-01...1.1.1)

---
updated-dependencies:
- dependency-name: Microsoft.SourceLink.GitHub
  dependency-type: direct:production
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Steve Smith <[email protected]>

src/GuardClauses/GuardClauses.csproj

@@ -30,7 +30,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="JetBrains.Annotations" Version="2021.2.0" />
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-*" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1-*" PrivateAssets="All" />
   </ItemGroup>
   <ItemGroup>
     <None Include="icon.png" Pack="true" Visible="false" PackagePath="" />