fix: handle local igniter in installer w/ more granular deps compile #882

Job	Run time
ash-ci / audit	29s
ash-ci / mix deps.get	15s
ash-ci / mix igniter.upgrade	0s
ash-ci / MIX_ENV=test mix.compile	24s
ash-ci / mix docs	57s
ash-ci / mix credo --strict	3s
ash-ci / MIX_ENV=dev mix.compile	27s
ash-ci / mix ash.codegen --check	0s
ash-ci / mix dialyzer	2m 24s
ash-ci / mix format --check-formatted	19s
ash-ci / mix sobelow	3s
ash-ci / mix spark.cheat_sheets --check	6s
ash-ci / mix spark.formatter --check	3s
ash-ci / mix test	1m 56s
ash-ci / mix deps.unlock --check-unused	22s
ash-ci / Deploy docs to GitHub pages.	8s
ash-ci / NIF ${{ matrix.nif }} - ${{ matrix.job.target }} (${{ matrix.job.os }})	0s
ash-ci / Release	0s
	7m 56s

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