improvement: add `change_password` action to generated code #1844

Job	Run time
mix deps.get	24s
MIX_ENV=test mix.compile	41s
mix hex.audit	18s
mix doctor --full --raise	30s
mix credo --strict	37s
mix git_ops.check_message	35s
mix dialyzer	45s
mix format --check-formatted	31s
mix ash_postgres.generate_migrations --check	30s
mix sobelow --config	31s
mix spark.cheat_sheets --check	34s
mix spark.formatter --check	31s
mix test	3m 13s
mix deps.unlock --check-unused	33s
MIX_ENV=dev mix.compile	32s
mix docs	34s
Deploy docs to GitHub pages.	7s
	11m 26s

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