Bump Microsoft.SourceLink.GitHub from 10.0.203 to 10.0.300 (#1782)

---
updated-dependencies:
- dependency-name: Microsoft.SourceLink.GitHub
  dependency-version: 10.0.300
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -46,7 +46,7 @@
   </ItemGroup>
   <ItemGroup>
     <GlobalPackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="10.0.300" />
-    <GlobalPackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.203" />
+    <GlobalPackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.300" />
     <GlobalPackageReference Include="Microsoft.VisualStudio.SlnGen" Version="12.0.32" />
     <GlobalPackageReference Include="Nerdbank.GitVersioning" Version="3.9.50" />
     <GlobalPackageReference Include="StyleCop.Analyzers" Version="1.1.118" />