I'm having an issue getting a basic `embassy` project working on my RP Pico. I am getting the following error:
```
error: invalid instruction mnemonic 'sev'
  --> /home/slabity/.cargo/registry/src/index.crates.io-6f17d22bba15001f/embassy-executor-0.5.0/src/arch/cortex_m.rs:13:31
   |
13 |             core::arch::asm!("sev");
   |                               ^
   |
note: instantiated into assembly here
  --> <inline asm>:2:2
   |
2  |     sev
   |     ^^^

error: could not compile `embassy-executor` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish..
```