chore: Update gc-arena to latest master

No API changes, but fixes a potential unsoundness in the `field!` macro.

Author: moulins

Cargo.lock

@@ -57,7 +57,7 @@ egui = { git = "https://github.com/emilk/egui.git", branch = "main" }
 clap = { version = "4.5.44", features = ["derive"] }
 cpal = "0.15.3"
 anyhow = "1.0"
-gc-arena = { git = "https://github.com/kyren/gc-arena.git", rev = "cef6db5e15bdf27f3c85b83ec0455431f134d2f0" }
+gc-arena = { git = "https://github.com/kyren/gc-arena.git", rev = "08e08414249d5914dfc3b402d7eadc133e00ce56" }
 slotmap = "1.0.7"
 async-channel = "2.5.0"
 bitflags = "2.9.1"

Cargo.toml

@@ -207,7 +207,7 @@ impl<'gc> VTable<'gc> {
     pub fn replace_scopes_with(self, mc: &Mutation<'gc>, new_scope: ScopeChain<'gc>) {
         let methods = field!(Gc::write(mc, self.0), VTableData, method_table).as_deref();
         for i in 0..methods.len() {
-            unlock!(methods[i], ClassBoundMethod, scope).set(Some(new_scope));
+            unlock!(&methods[i], ClassBoundMethod, scope).set(Some(new_scope));
         }
     }