fix(namespace): remove trailing empty query in table uri

[jackye1995]

Before this fix, it is possible for table uri to have a trailing ? because we do not clear the query component.

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
rust/lance-namespace-impls/src/dir/manifest.rs	88.88%	0 Missing and 1 partial ⚠️

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