[Dependency] Half 1.8.1 MSRV issue

[homersimpsons]

half just released a new version (1.8.1). This version does not support Rust Version under 1.51.

An issue has been open on the upstream repository: starkat99/half-rs#48

nom currently has a MSRV of 1.41.1 which is too low for this dependency.

@Geal / @Stargateur

[Stargateur]

MSRV for nom 7 is 1.48 but the current test is still for 1.41 see Geal comment:

if possible, I'd like to keep nom usable on 1.41.1 for now. As said in the readme, it works on that version without guarantee, but the debian stable upgrade happened quite recently, so people have not migrated quickly to the new version (which has a more recent rustc)

For MSRV 1.51 according to nom policy this would have to wait for nom 8.

half fixed their build starkat99/half-rs#48 (comment)

[Geal]

yup, it is fixed now, and with #1435 we should reduce the risk of future issues like this