[FT] allow `httpx>0.27`

[jamesbraza]

Issue encountered

#648 locked httpx==0.27.2, but this lags the most recent httpx minor version of 0.28.

Solution/Feature

Can lighteval allow httpx>0.27, so I can use it in a repo that requires httpx>=0.28.

Possible alternatives

N/a

[NathanHB]

hey ! feel free to open a PR, if it works with higher version of httpx then we will merge asap :)