chore(deps): bump ruvector-core from 2.0.5 to 2.2.0 in /v2 (#479)

Bumps [ruvector-core](https://github.com/ruvnet/ruvector) from 2.0.5 to 2.2.0.
- [Release notes](https://github.com/ruvnet/ruvector/releases)
- [Changelog](https://github.com/ruvnet/RuVector/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ruvnet/ruvector/compare/v2.0.5...v2.2.0)

---
updated-dependencies:
- dependency-name: ruvector-core
  dependency-version: 2.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

v2/Cargo.toml

@@ -134,7 +134,7 @@ midstreamer-attractor = "0.1.0"
 
 # ruvector integration (published on crates.io)
 # Vendored at v2.1.0 in vendor/ruvector; using crates.io versions until published.
-ruvector-core = "2.0.4"
+ruvector-core = "2.2.0"
 ruvector-mincut = "2.0.4"
 ruvector-attn-mincut = "2.0.4"
 ruvector-temporal-tensor = "2.0.6"