improvement: Implement `AshGraphql.Error` for AshAuthentication errors. #1232

Job	Run time
ash-ci / audit	1m 0s
ash-ci / mix igniter.upgrade	3s
ash-ci / mix deps.get	15s
ash-ci / MIX_ENV=test mix.compile	41s
ash-ci / mix format --check-formatted	38s
ash-ci / mix docs	26s
ash-ci / Deploy docs to GitHub pages.	0s
ash-ci / mix spark.cheat_sheets --check	35s
ash-ci / mix spark.formatter --check	39s
ash-ci / mix credo --strict	47s
ash-ci / mix ash.codegen --check	0s
ash-ci / mix dialyzer	3m 38s
ash-ci / mix sobelow	47s
ash-ci / mix test	1m 3s
ash-ci / mix deps.unlock --check-unused	37s
ash-ci / MIX_ENV=dev mix.compile	37s
ash-ci / Release	0s
	11m 46s

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