Bump Microsoft.SourceLink.GitHub from 10.0.202 to 10.0.203 (#1012)

Updated [Microsoft.SourceLink.GitHub](https://github.com/dotnet/dotnet)
from 10.0.202 to 10.0.203.

<details>
<summary>Release notes</summary>

_Sourced from [Microsoft.SourceLink.GitHub's
releases](https://github.com/dotnet/dotnet/releases)._

## 10.0.203

You can build .NET 10.0 from the repository by cloning the release tag
`v10.0.203` and following the build instructions in the [main
README.md](https://github.com/dotnet/dotnet/blob/v10.0.203/README.md#building).

Alternatively, you can build from the sources attached to this release
directly.
More information on this process can be found in the [dotnet/dotnet
repository](https://github.com/dotnet/dotnet/blob/v10.0.203/README.md#building-from-released-sources).

Attached are PGP signatures for the GitHub generated tarball and
zipball. You can find the public key at https://dot.net/release-key-2023

Commits viewable in [compare
view](dotnet/dotnet@v10.0.202...v10.0.203).
</details>

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

Author: dependabot[bot]

Directory.Packages.props

@@ -43,7 +43,7 @@
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.5.0" />
     <PackageVersion Include="Microsoft.SemanticKernel" Version="$(SemanticKernelVersion)" />
     <PackageVersion Include="Microsoft.SemanticKernel.Connectors.PgVector" Version="$(SemanticKernelVersion)-preview" />
-    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.202" />
+    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.203" />
     <!-- Pin to patched versions; NuGet.Protocol 6.12.5+ fixes GHSA-g4vj-cjjj-v7hg (pulled in by Microsoft.VisualStudio.Web.CodeGeneration.Design) -->
     <PackageVersion Include="NuGet.Packaging" Version="7.3.1" />
     <PackageVersion Include="NuGet.Protocol" Version="7.3.1" />