chore(deps-dev): Bump ash_graphql from 0.26.7 to 0.26.8 #1097

Job	Run time
mix deps.get	17s
mix hex.audit	21s
MIX_ENV=test mix.compile	2m 22s
mix dialyzer	4m 47s
mix doctor --full --raise	30s
mix git_ops.check_message	39s
mix credo --strict	31s
mix format --check-formatted	38s
mix ash_postgres.generate_migrations --check	31s
mix sobelow --config	41s
mix spark.cheat_sheets --check	44s
mix test	54s
mix spark.formatter --check	32s
mix deps.unlock --check-unused	32s
MIX_ENV=dev mix.compile	0s
mix git-ops.release	0s
mix docs	0s
Deploy docs to GitHub pages.	0s
	13m 59s

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