Update uefi requirement from 0.15 to 0.24 in /lib/bootloader_shared

Updates the requirements on [uefi](https://github.com/rust-osdev/uefi-rs) to permit the latest version.
- [Changelog](https://github.com/rust-osdev/uefi-rs/blob/main/CHANGELOG.md)
- [Commits](rust-osdev/uefi-rs@uefi-services-v0.15.0...uefi-v0.24.0)

---
updated-dependencies:
- dependency-name: uefi
  dependency-type: direct:production
...

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

lib/bootloader_shared/Cargo.toml

@@ -8,4 +8,4 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 x86 = { version = "0.52", features = ["unstable"] }
 arrayvec = { version = "0.7.0", default-features = false }
-uefi = "0.15"
+uefi = "0.24"