Support panic = "immediate-abort" in cargo.json

[silvanshade]

This PR updates cargo.json to recognize panic = "immediate-abort".

See: https://doc.rust-lang.org/rustc/codegen-options/index.html#panic

Relevant upstream PR: rust-lang/rust#146317

Example:

# Cargo.toml

[profile.release]
panic = "immediate-abort"

Additionally, one of the following must also be specified to unlock the setting:

# Cargo.toml

cargo-features = ["panic-immediate-abort"]

or

# .cargo/config.toml

[unstable]
panic-immediate-abort = true

[ya7010]

Thanks!