Update uefi crate from 0.20 to 0.32

This also switches to the new API of the uefi crate that was
introduced in version 0.31. The old api was deprecated in 0.32 and
will be removed in 0.33.
See https://github.com/rust-osdev/uefi-rs/blob/ac19526656953c32e8e0ef7bc703f7700b151ae4/docs/funcs_migration.md
and rust-osdev/uefi-rs#893

Author: Wasabi375

Cargo.lock

@@ -15,4 +15,5 @@ bootloader-boot-config = { workspace = true }
 log = "0.4.14"
 x86_64 = "0.14.8"
 serde-json-core = "0.5.0"
-uefi = "0.20.0"
+uefi = "0.32.0"
+