chore: modify test to show error on anonymous aggregates #211

Job	Run time
ash-ci / mix deps.get	22s
ash-ci / MIX_ENV=test mix.compile	30s
ash-ci / audit	40s
ash-ci / MIX_ENV=dev mix.compile	36s
ash-ci / mix format --check-formatted	41s
ash-ci / mix dialyzer	3m 4s
ash-ci / mix ash.codegen --check	0s
ash-ci / mix credo --strict	27s
ash-ci / mix sobelow	29s
ash-ci / mix spark.cheat_sheets --check	26s
ash-ci / mix spark.formatter --check	26s
ash-ci / mix test	2m 38s
ash-ci / mix deps.unlock --check-unused	40s
ash-ci / mix docs	30s
ash-ci / Deploy docs to GitHub pages.	7s
ash-ci / Release	0s
	11m 36s

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