chore: bump memmap2 from 0.3.1 to 0.4.0 (#19974)

* chore: bump memmap2 from 0.3.1 to 0.4.0

Bumps [memmap2](https://github.com/RazrFalcon/memmap2-rs) from 0.3.1 to 0.4.0.
- [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/v0.3.1...v0.4.0)

---
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

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sdk/Cargo.toml

@@ -58,7 +58,7 @@ itertools =  "0.10.1"
 lazy_static = "1.4.0"
 libsecp256k1 = { version = "0.6.0", optional = true }
 log = "0.4.14"
-memmap2 = { version = "0.3.1", optional = true }
+memmap2 = { version = "0.4.0", optional = true }
 num-derive = "0.3"
 num-traits = "0.2"
 pbkdf2 = { version = "0.9.0", default-features = false }