Update Rust crate relative-path to v2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
relative-path	dependencies	major	1.9.3 -> 2.0.0

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Release Notes

udoprog/relative-path (relative-path)

v2.0.1: relative-path-2.0.1, relative-path-utils-0.3.1

Compare Source

What's Changed

• Fix missing by default features by @​udoprog in #​67

Full Changelog: udoprog/relative-path@2.0.0...2.0.1

v2.0.0: relative-path-2.0.0, relative-path-utils-0.3.0

Compare Source

What's Changed

• Add license files to the crate tarballs by @​danakj in #​60
• Fix doc typo for RelativePathBuf to Rc by @​danakj in #​61
• Fix lints by @​udoprog in #​62
• Allow building with no_std by @​jprendes in #​64
• Mark more stuff as #[must_use] and #[inline] and docs by @​udoprog in #​65
• Add features to relative-path-utils and bumps versions by @​udoprog in #​66

New Contributors

• @​danakj made their first contribution in #​60
• @​jprendes made their first contribution in #​64

Full Changelog: udoprog/relative-path@utils-0.2.0...2.0.0

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This change is 

[palfrey]

@palfrey reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: 1 of 1 LGTMs obtained, and all files reviewed, and pending CI: NativeLink.com Cloud / Remote Cache / macos-15, Coverage, Publish image, Publish nativelink-worker-init, Web Platform Deployment / macos-15, Bazel Dev / macos-15, Cargo Dev / macos-15, Cargo Dev / ubuntu-24.04, Installation / macos-15, Installation / ubuntu-24.04, buildstream, mongo