chore: bump memmap2 from 0.2.3 to 0.3.0 (#18387)

* chore: bump memmap2 from 0.2.3 to 0.3.0

Bumps [memmap2](https://github.com/RazrFalcon/memmap2-rs) from 0.2.3 to 0.3.0.
- [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/v0.2.3...v.0.3.0)

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

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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>

sdk/Cargo.toml

@@ -56,7 +56,7 @@ itertools =  "0.10.1"
 lazy_static = "1.4.0"
 libsecp256k1 = { version = "0.5.0", optional = true }
 log = "0.4.14"
-memmap2 = { version = "0.2.3", optional = true }
+memmap2 = { version = "0.3.0", optional = true }
 num-derive = "0.3"
 num-traits = "0.2"
 pbkdf2 = { version = "0.8.0", default-features = false }