enable conditional exports #3099

Job	Run time
Security check of added dependencies	9s
Diff content of NPM package	51s
ci / Lint source files	53s
ci / Check for commonly ignored files	6s
ci / Check health of package-lock.json file	17s
ci / Run integration tests	2m 12s
ci / Run fuzzing tests	32s
ci / Run tests on Node v22	30s
ci / Run tests on Node v20	25s
ci / Run tests on Node v24	31s
ci / Run CodeQL security scan	1m 33s
ci / Build 'denoDist' artifact	19s
ci / Build 'npmDist' artifact	30s
	8m 48s

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