Bump SourceLink.Create.GitHub from 2.1.2 to 2.8.3

Bumps [SourceLink.Create.GitHub](https://github.com/ctaggart/SourceLink) from 2.1.2 to 2.8.3.
- [Release notes](https://github.com/ctaggart/SourceLink/releases)
- [Commits](ctaggart/SourceLink@2.1.2...2.8.3)

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

Author: dependabot-preview[bot]

src/Exceptionless.RandomData/Exceptionless.RandomData.csproj

@@ -29,7 +29,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="SourceLink.Create.GitHub" Version="2.1.2" PrivateAssets="all" />
+    <PackageReference Include="SourceLink.Create.GitHub" Version="2.8.3" PrivateAssets="all" />
     <DotNetCliToolReference Include="dotnet-sourcelink-git" Version="2.1.2" />
     <DotNetCliToolReference Include="dotnet-sourcelink" Version="2.1.2" />
   </ItemGroup>