v0.3.0: implemented a simple in-memory auth provider (#32)

* upgraded container version to match code release

* upgraded dependencies and some cleanup

* replace package settings with similar implementation from txsvc/stdlib

* renamed the DialSettings property

* refactored to use the latest stdlib and cloudlib

* changed to ubi9 and build on main

* replace logging in package api

* replace logging in package auth

* replaced logger with observer

* some simple cleanup

* implemented a simple in-memory auth provider