Add nf-test to `STARFUSION_BUILD` and refactor module #1508

Job	Run time
24.04.2 \| test_stub \| docker	4m 31s
24.04.2 \| test_build \| docker	6m 43s
latest-stable \| test_stub \| docker	5m 27s
latest-stable \| test_build \| docker	7m 43s
	24m 24s

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