bug printing in-memory state manager in REPL

[camsaul]

metabase-enterprise.sso.integrations.saml> state-manager
Error printing return value (IllegalArgumentException) at clojure.lang.MultiFn/findAndCacheBestMethod (MultiFn.java:179).
Multiple methods in multimethod 'simple-dispatch' match dispatch value: class saml20_clj.state$in_memory_state_manager$reify__78851 -> interface clojure.lang.IDeref and interface pretty.core.PrettyPrintable, and neither is preferred

we need to add a preference to use the PrettyPrintable method for PPrint simple-dispatch

[simongray]

(prefer-method print-method pretty.core.PrettyPrintable saml20-clj.state/StateManager)
(prefer-method print-method pretty.core.PrettyPrintable clojure.lang.IDeref)

This should fix the issue.