improvement: add :regex builtin type #1304

Job	Run time
ash-ci / audit	51s
ash-ci / Report Mix Dependencies	9s
ash-ci / MIX_ENV=test mix.compile	36s
ash-ci / REUSE compliance	14s
ash-ci / mix igniter.upgrade	4s
ash-ci / Community Files Check	3s
ash-ci / mix format --check-formatted	28s
ash-ci / mix spark.formatter --check	7s
ash-ci / MIX_ENV=dev mix.compile	26s
ash-ci / mix spark.cheat_sheets --check	1m 3s
ash-ci / mix credo --strict	1m 12s
ash-ci / mix dialyzer	2m 57s
ash-ci / mix sobelow	37s
ash-ci / mix deps.unlock --check-unused	36s
ash-ci / mix test	1m 35s
ash-ci / mix ash.codegen --check	0s
ash-ci / mix doctor --full --raise	0s
ash-ci / mix git_ops.check_message	0s
ash-ci / mix docs	1m 12s
ash-ci / Deploy docs to GitHub pages.	11s
ash-ci / Release	0s
ash-ci / NIF ${{ matrix.nif }} - ${{ matrix.job.target }} (${{ matrix.job.os }})	0s
	12m 21s

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