fix(crate): revert split to make crate releasable

[sprudel]

• Reverts crate split of Update deps for OpenIdConnect and Reqwest #593 making crate releasable again
• added pipeline job for validating packaging works to prevent non-releasable crate on main
• aligned crypto lib to aws_lc_rs where possible (reqwest via openidconnect still uses ring)

[sprudel]

@buehler do you have time to review this?

[buehler]

Seems reasonable :)

I'm very short on time currently but the glances I gave the lib are pretty ok :)