Bump LibGit2Sharp from 0.28.0 to 0.29.0

Bumps [LibGit2Sharp](https://github.com/libgit2/libgit2sharp) from 0.28.0 to 0.29.0.
- [Release notes](https://github.com/libgit2/libgit2sharp/releases)
- [Changelog](https://github.com/libgit2/libgit2sharp/blob/master/CHANGES.md)
- [Commits](libgit2/libgit2sharp@0.28.0...0.29.0)

---
updated-dependencies:
- dependency-name: LibGit2Sharp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

GitHubNotifier/GitHubNotifier.csproj

@@ -37,7 +37,7 @@
 	<ItemGroup>
 		<PackageReference Include="LiorBanai.NotificationWindow" Version="1.8.0" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-		<PackageReference Include="LibGit2Sharp" Version="0.28.0" />
+		<PackageReference Include="LibGit2Sharp" Version="0.29.0" />
 	</ItemGroup>
 
 	<ItemGroup>