devel/arm-none-eabi-gcc492: Deprecate port

Long time unsupported upstream.

Its last dependency has been deprecated on 2023-02-24 with an expiration
date of 2023-04-30 (see commit
5c35cbe93da05bd8243721adcfc1d9015be7eab6). Set expiration date for this
port one month later.

PR: 269660