Update dependency LibGit2Sharp to 0.31.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
LibGit2Sharp	0.28.0 -> 0.31.0

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Release Notes

libgit2/libgit2sharp (LibGit2Sharp)

v0.31.0: LibGit2Sharp v0.31.0

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Changes

• This release includes libgit2 v1.8.4.
  • SSH is now supported through libgit2's support for OpenSSH.
• The ppc64le architecture is now supported on Linux.
• .NET 6 has reached end of support, so LibGit2Sharp now targets net472 and net8.0.

Additions

• Adds Depth to FetchOptions allowing for shallow cloning #​2070
• Make owner validation configurable #​2093
• Add a CloneOptions constructor that takes a FetchOptions #​2132

Fixes

• TreeDefinition.Remove fails to remove unwrapped trees #​1869
• ObjectDatabase.Write(Stream stream...) overload does not respect T #​2071
• Repository.Worktrees.Add leaves now worktree empty #​2037

v0.30.0

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v0.29.0: LibGit2Sharp v0.29.0

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Changes

• This release includes libgit2 v1.7.1.
  • CI changes for the native binaries has removed support for CentOS 7. See #​2066 for details.

Additions

• Add proxy options #​2065
  • See PR for details, including some breaking changes to CloneOptions and SubmoduleUpdateOptions

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