Fix JSON false values incorrectly being encoded as nulls in code actions #38

Job	Run time
build (ubuntu-latest, 27.2, false)	46s
build (ubuntu-latest, 28.2, false)	46s
build (ubuntu-latest, 29.3, false)	54s
build (macos-latest, 28.2, false)	1m 51s
build (macos-latest, 29.3, false)	1m 47s
build (windows-latest, 27.2, false)	1m 2s
build (windows-latest, 28.2, false)	1m 2s
build (windows-latest, 29.3, false)	1m 12s
build (ubuntu-latest, snapshot, true)	41s
build (macos-latest, snapshot, true)	1m 24s
build (windows-latest, snapshot, true)	35s
	12m 0s

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