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Reproduction steps

Use a downstream app such as GitVersion with a repo config with core.repositoryformatversion=1 and extensions.worktreeconfig=true.
An exception is bubbled up by libgit2sharp unsupported extension name extensions.worktreeconfig

Expected behavior

No error and a gitversion.json file is generated with the SemVer.

Actual behavior

unsupported extension name extensions.worktreeconfig

Version of LibGit2Sharp (release number or SHA1)

0.30.0

Operating system(s) tested; .NET runtime tested

Windows 11, .NET 5