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
...

Signed-off-by: dependabot[bot] <support@github.com>

* [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>

sdk/Cargo.toml

@@ -57,7 +57,7 @@ itertools =  "0.10.3"
 lazy_static = "1.4.0"
 libsecp256k1 = { version = "0.6.0", optional = true }
 log = "0.4.14"
-memmap2 = { version = "0.5.0", optional = true }
+memmap2 = { version = "0.5.1", optional = true }
 num-derive = "0.3"
 num-traits = "0.2"
 pbkdf2 = { version = "0.10.0", default-features = false }