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
...

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>

frozen-abi/Cargo.toml

@@ -22,7 +22,7 @@ thiserror = "1.0"
 [target.'cfg(not(target_arch = "bpf"))'.dependencies]
 solana-logger = { path = "../logger", version = "=1.8.0" }
 generic-array = { version = "0.14.4", default-features = false, features = ["serde", "more_lengths"]}
-memmap2 = "0.2.3"
+memmap2 = "0.3.0"
 
 [build-dependencies]
 rustc_version = "0.4"