Remove support for OpenSSL versions no longer supported by OpenSSL team

By 2022, the only 1.1.1 and 3.0.x branches are supported by OpenSSL upstream:

https://www.openssl.org/source/

The 1.0.2 is used only in RHEL7 as far as I know and we can probably support it as a best effort or drop it before or after the next release.