build(deps): update vm-memory requirement from 0.14.0 to 0.15.0

Updates the requirements on [vm-memory](https://github.com/rust-vmm/vm-memory) to permit the latest version.
- [Release notes](https://github.com/rust-vmm/vm-memory/releases)
- [Changelog](https://github.com/rust-vmm/vm-memory/blob/main/CHANGELOG.md)
- [Commits](rust-vmm/vm-memory@v0.14.0...v0.15.0)

---
updated-dependencies:
- dependency-name: vm-memory
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.toml

@@ -26,11 +26,11 @@ elf = []
 pe = []
 
 [dependencies]
-vm-memory = "0.14.0"
+vm-memory = "0.15.0"
 
 [dev-dependencies]
 criterion = { version = "0.5.1", features = ["html_reports"] }
-vm-memory = { version = "0.14.0", features = ["backend-mmap"] }
+vm-memory = { version = "0.15.0", features = ["backend-mmap"] }
 
 [[bench]]
 name = "main"