chore: bump memmap2 from 0.1.0 to 0.2.3 (#17548)

Bumps [memmap2](https://github.com/RazrFalcon/memmap2-rs) from 0.1.0 to 0.2.3.
- [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/v0.1.0...v0.2.3)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.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 = "0.14.3", default-features = false, features = ["serde", "more_lengths"]}
-memmap2 = "0.1.0"
+memmap2 = "0.2.3"
 
 [build-dependencies]
 rustc_version = "0.2"