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>

sdk/Cargo.toml

@@ -55,7 +55,7 @@ itertools =  "0.9.0"
 lazy_static = "1.4.0"
 libsecp256k1 = { version = "0.3.5", optional = true }
 log = "0.4.11"
-memmap2 = { version = "0.1.0", optional = true }
+memmap2 = { version = "0.2.3", optional = true }
 num-derive = "0.3"
 num-traits = "0.2"
 pbkdf2 = { version = "0.6.0", default-features = false }