v2.1.1 Jul 28 2024
* Update minimum required go version to go 1.20
* Update tests to work on 32-bit systems.
* [jwa] Add RSA_OAEP_384 and RSA_OAEP_512
* [jwa] `jwa.SignatureAlgorithm` now has a `IsSymmetric` method.
* [jwa] Add `jwa.RegisterSignatureAlgorithmOptions()` to register new algorithms while
specifying extra options. Currently only `jwa.WithSymmetricAlgorithm()` is supported.
* [jws] Clearly mark `jws.WithHeaders()` as deprecated