libssl1.1 has reached EOL

[KolbyML]

https://www.openssl.org/blog/blog/2023/06/15/1.1.1-EOL-Reminder/

libssl1.1.1 has reached EOL and most distro's are swapping to libssl3.

[seanmonstar]

Was this meant to be filed here?

[KolbyML]

rust-openssl supports libssl3 sfackler/rust-openssl#1694
sfackler/rust-native-tls#240 rust-native-tls already supports libssl3 as well. 0.10.29 is just the minimum supported version of rust-openssl

The readme says

## Requirements

On Linux:

- OpenSSL 1.0.1, 1.0.2, 1.1.0, or 1.1.1 with headers (see https://github.com/sfackler/rust-openssl)

On Windows and macOS:

- Nothing.

Reqwest uses [rust-native-tls](https://github.com/sfackler/rust-native-tls),
which will use the operating system TLS framework if available, meaning Windows
and macOS. On Linux, it will use OpenSSL 1.1.

We should be able to use libssl3 instead of libssl1.1 now