chore: fix deprecated ref to static mut

src/main.rs

@@ -9,6 +9,8 @@ mod input_filter;
 mod stick;
 mod usb_comms;
 
+use core::ptr::addr_of_mut;
+
 use config::config_task;
 use defmt::info;
 use embassy_executor::Executor;
@@ -72,7 +74,10 @@ fn main() -> ! {
     let spi_acs = Output::new(AnyPin::from(p_acs), Level::High); // active low
     let spi_ccs = Output::new(AnyPin::from(p_ccs), Level::High); // active low
 
-    spawn_core1(p.CORE1, unsafe { &mut CORE1_STACK }, move || {
+    spawn_core1(
+        p.CORE1,
+        unsafe { addr_of_mut!(CORE1_STACK).as_mut().unwrap() },
+        move || {
             let executor1 = EXECUTOR1.init(Executor::new());
             executor1.run(|spawner| {
                 spawner.spawn(usb_transfer_task(uid, driver)).unwrap();
@@ -98,7 +103,8 @@ fn main() -> ! {
                     ))
                     .unwrap()
             });
-    });
+        },
+    );
 
     let executor0 = EXECUTOR0.init(Executor::new());
     info!("Initialized.");