Bump Microsoft.SourceLink.GitHub from 10.0.202 to 10.0.203

---
updated-dependencies:
- dependency-name: Microsoft.SourceLink.GitHub
  dependency-version: 10.0.203
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -4,7 +4,7 @@
     <CentralPackageTransitivePinningEnabled>false</CentralPackageTransitivePinningEnabled>
   </PropertyGroup>
   <ItemGroup Condition="$(IsPackable) == 'true'">
-    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.202" />
+    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.203" />
   </ItemGroup>
   <ItemGroup>
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />