Bump Microsoft.SourceLink.GitHub from 8.0.0 to 10.0.300 (#9)

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

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

Author: dependabot[bot]

Directory.Packages.props

@@ -14,7 +14,7 @@
 
   <!-- Build-time / packaging -->
   <ItemGroup>
-    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
+    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.300" />
   </ItemGroup>
 
   <!-- Test dependencies -->