Update Zero Install .NET to 2.29.3

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This PR contains the following updates:

Package	Change	Age	Confidence
ZeroInstall.Client (source)	2.29.2 → 2.29.3
ZeroInstall.Store (source)	2.29.2 → 2.29.3

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Release Notes

0install/0install-dotnet (ZeroInstall.Client)

v2.29.3

Compare Source

This release mainly serves as a dependency. For end-user releases, take a look at 0install-win.

Changes

• Added support for 0install add --version=
• Made generated stub EXEs resilient against stale registry entries
• Updated SharpCompress dependency

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