fix(esw): resume inferBuildOption Observable

[lbwa]

rxjs@7.5.1 would never complete the following observable:

esw/packages/esw/src/build/options.ts

Lines 57 to 62 in 90a7ccd

	const inferenceMeta$ = combineLatest([
	pkgJson$,
	inferredOutPaths$,
	moduleIdFields$,
	alternativeFormats$
	]).pipe(

therefore, the following toArray would never be completed,

esw/packages/esw/src/build/node.ts

Line 48 in a1bda05

toArray(),

and it occur run$ observable never be completed.

esw/packages/esw/src/build/node.ts

Line 85 in a1bda05

return firstValueFrom(run$)