Kevin Hovsäter reported a crash in cli when running 'cargo run -p cli --
--bundle-path target/debug/Zed'. It was caused by unaligned pointer
access in ipc-channel library; rustc started generating debug_asserts
for pointer alignment starting with 1.70, which we have
oh-so-conveniently upgraded to shortly before Kevin noticed a crash.
Rust 1.70 did not introduce this panic, it merely started triggering on
UB that was previously ignored.

/cc @hovsater @SomeoneToIgnore 
Release Notes:

- N/A