Require URIs.jl >= 1.6, and bump version from 1.10.16 to 1.10.17

[DilumAluthge]

I imagine that there are quite a few people that:

1. Do have HTTP.jl as a direct dep in their Project.toml file.
2. Do not have URIs.jl as a direct dep.

In order for those people to guarantee that they get the fix from JuliaWeb/URIs.jl#66, they'd need to add URIs.jl as a direct dep.

This PR presents an alternative option. The idea is that we release a new version of HTTP.jl (HTTP.jl version 1.10.17) that requires URIs.jl 1.6. Then, people that currently have HTTP.jl as a direct dep will only need to set the following [compat] entry in their Project.toml file:

[compat]
HTTP = "1.10.17"

And this will guarantee that they get the fix from JuliaWeb/URIs.jl#66.

After merging this PR, I suggest that we register HTTP.jl version 1.10.17.

[quinnj]

Great idea; thanks!

[DilumAluthge]

Released in https://github.com/JuliaWeb/HTTP.jl/releases/tag/v1.10.17 (JuliaRegistries/General#133222).