chore: update dependencies

[NULLx76]

Updating the dependencies only required a small change with regard to the base64 crate.
Everything seems to compile fine, doing cargo run errors with a 404 however but this also seems to happen for me on master.

It might also be nice to switch reqwest over from OpenSSL to the RusTLS, just so it doesn't require openssl to be installed to build. But didn't want to just lump it in without asking.

Finally, we still depend on hyper_old_types because we're using the typed headers for Link. Unfortunately these have not been added to headers yet: hyperium/headers#67, hyperium/headers#113. I think it's fine like this for now, but we should probably switch when those do land.

Fixes #87

[MarcoIeni]

It might also be nice to switch reqwest over from OpenSSL to the RusTLS, just so it doesn't require openssl to be installed to build. But didn't want to just lump it in without asking.

Makes sense to me if you want to do it in another PR 👍