blurmac: Update objc2 to 0.4.1 (servo#40113)

Bumps from 0.2.0 to 0.4.0, we have to temporarily duplicate
`objc2-encode`, but the next PR will finish the upgrade and unduplicate
that dependency.

Testing: No functionality changed, only a refactor

Signed-off-by: Ashwin Naren <[email protected]>

Author: arihant2math

Cargo.lock

@@ -193,6 +193,9 @@ skip = [
     # really just a build dep, so not a large problem.
     "toml_datetime",
     "toml_edit",
+
+    # blurmac
+    "objc2-encode",
 ]
 
 # github.com organizations to allow git sources for

deny.toml

@@ -16,8 +16,4 @@ crate-type = ["rlib"]
 
 [dependencies]
 log = "0.4"
-objc2 = "0.2"
-
-# Remove this when updating objc2 to a more recent version
-[lints.rust]
-unexpected_cfgs = { level = "allow" }
+objc2 = "0.4"

third_party/blurmac/Cargo.toml

@@ -8,16 +8,17 @@
 use std::error::Error;
 use std::os::raw::c_int;
 
-use objc2::runtime::{Object, YES};
+use objc2::ffi::YES;
+use objc2::runtime::AnyObject;
 
 use crate::delegate::bm;
 use crate::framework::{cb, io, ns};
 use crate::utils::{NOT_SUPPORTED_ERROR, nsx};
 
 #[derive(Clone, Debug)]
 pub struct BluetoothAdapter {
-    pub(crate) manager: *mut Object,
-    pub(crate) delegate: *mut Object,
+    pub(crate) manager: *mut AnyObject,
+    pub(crate) delegate: *mut AnyObject,
 }
 // TODO: implement std::fmt::Debug and/or std::fmt::Display instead of derive?