(deps): Bump LibGit2Sharp from 0.28.0 to 0.29.0 in /src

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] <[email protected]>

Author: dependabot[bot]

src/Directory.Packages.props

@@ -6,7 +6,7 @@
     <PackageVersion Include="Buildalyzer" Version="5.0.1" />
     <PackageVersion Include="JsonSchema.Net.Generation" Version="3.5.0" />
     <PackageVersion Include="JunitXml.TestLogger" Version="3.0.134" />
-    <PackageVersion Include="LibGit2Sharp" Version="0.28.0" />
+    <PackageVersion Include="LibGit2Sharp" Version="0.29.0" />
     <PackageVersion Include="MSBuild.ProjectCreation" Version="11.0.0" />
     <PackageVersion Include="Microsoft.Build" Version="17.8.3" />
     <PackageVersion Include="Microsoft.Build.Utilities.Core" Version="17.8.3" />

src/GitVersion.LibGit2Sharp/Git/GitRepository.extended.cs

@@ -116,7 +116,7 @@ private DirectReference GetPullRequestReference(AuthenticationInfo auth, LibGit2
     private static FetchOptions GetFetchOptions(AuthenticationInfo auth) =>
         new() { CredentialsProvider = GetCredentialsProvider(auth) };
     private static CloneOptions GetCloneOptions(AuthenticationInfo auth) =>
-        new() { Checkout = false, CredentialsProvider = GetCredentialsProvider(auth) };
+        new() { Checkout = false, FetchOptions = { CredentialsProvider = GetCredentialsProvider(auth) } };
     private static CredentialsHandler? GetCredentialsProvider(AuthenticationInfo auth)
     {
         if (!auth.Username.IsNullOrWhiteSpace())