feat: JWT cache implementation based on sieve algorithm (#4084)

Changes:

1. Refactoring and some cleanup of JWT handling code:
* Instead of caching AuthResult cache decoded claims (which signature was verified). Validating claims and determining role is done after cache lookup
* Cleaned up API so that usage of it is simplified: lookupJwtCache cache key >>= parseClaims configJwtAud time
* Handling of JwtCacheState initialization and updates of configuration is encapsulated in Auth.JwtCache module

2. Generic high performance (hopefully) scalable, dynamically resizeable cache implementation based on stm, stm-hamt and sieve algorithm. It also integrates with PostgREST measurements infrastructure providing usage stats (ie. hit ratio, evictions count)

test/io/configs/expected/boolean-numeric.config

@@ -23,7 +23,7 @@ jwt-aud = ""
 jwt-role-claim-key = ".\"role\""
 jwt-secret = ""
 jwt-secret-is-base64 = true
-jwt-cache-max-lifetime = 0
+jwt-cache-max-entries = 1000
 log-level = "error"
 log-query = "disabled"
 openapi-mode = "follow-privileges"