chore(deps-dev): bump mix_test_watch from 1.2.0 to 1.3.0 in the dev-dependencies group #1361

Job	Run time
ash-ci / audit	2m 44s
ash-ci / Community Files Check	6s
ash-ci / mix igniter.upgrade	2m 27s
ash-ci / MIX_ENV=test mix.compile	2m 31s
ash-ci / Report Mix Dependencies	0s
ash-ci / mix format --check-formatted	23s
ash-ci / mix spark.formatter --check	8s
ash-ci / mix spark.cheat_sheets --check	41s
ash-ci / mix sobelow	25s
ash-ci / mix dialyzer	6m 0s
ash-ci / mix deps.unlock --check-unused	24s
ash-ci / MIX_ENV=dev mix.compile	2m 17s
ash-ci / mix test	56s
ash-ci / mix credo --strict	1m 10s
ash-ci / mix ash.codegen --check	0s
ash-ci / mix docs	2m 21s
ash-ci / Deploy docs to GitHub pages.	0s
ash-ci / Release	0s
ash-ci / NIF ${{ matrix.nif }} - ${{ matrix.job.target }} (${{ matrix.job.os }})	0s
	22m 33s

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