Bump rust-toolchain from 1.93.0 to 1.97.0 in /codex-rs #22

Job	Run time
Detect changed areas	4s
cargo shear	53s
Format / etc	30s
Argument comment lint - Linux	36s
Argument comment lint - macOS	3s
Argument comment lint - Windows	1s
Argument comment lint package	-1s
CI results (required)	2s
	2m 8s

Provide feedback