Bump memmap2 from 0.5.0 to 0.5.1 (#22409)

* Bump memmap2 from 0.5.0 to 0.5.1

Bumps [memmap2](https://github.com/RazrFalcon/memmap2-rs) from 0.5.0 to 0.5.1.
- [Release notes](https://github.com/RazrFalcon/memmap2-rs/releases)
- [Changelog](https://github.com/RazrFalcon/memmap2-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/RazrFalcon/memmap2-rs/compare/v0.5.0...v0.5.1)

---
updated-dependencies:
- dependency-name: memmap2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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* [auto-commit] Update all Cargo lock files

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

bucket_map/Cargo.toml

@@ -12,7 +12,7 @@ edition = "2021"
 
 [dependencies]
 solana-sdk = { path = "../sdk", version = "=1.10.0" }
-memmap2 = "0.5.0"
+memmap2 = "0.5.1"
 log = { version = "0.4.11" }
 solana-measure = { path = "../measure", version = "=1.10.0" }
 rand = "0.7.0"