Remove openssl and pq

[clux]

Both EOL for ages, not something I use anymore, and has maintained alternatives (in form of the blackdex image for pq, and rustls for openssl).
Having these libraries in here creates a false confidence that these are OK to use (at the given versions) when they are not. Better to link to more specific variants that care about these libraries.

Closes #153
Closes #81

This also saves quite a bit on the arm build. 65m to 35m (most of which is tests now so can be optimized further).

Minor test specifics;

• updates test dependency versions to fix fake dependency vulns
• shift rustls / hyper test to a new version where openssl is no longer default
• remove diesel test using pq