refactor: reduce the number of builds done in output-path_spec #466

Job	Run time
build	21s
lint	2m 10s
e2e_windows (windows-2025, 22, npm, 3)	1m 11s
e2e_windows (windows-2025, 22, npm, 1)	1m 12s
e2e_windows (windows-2025, 22, esbuild, 0)	1m 11s
e2e_windows (windows-2025, 22, npm, 2)	54s
e2e_windows (windows-2025, 22, npm, 0)	58s
e2e_windows (windows-2025, 22, npm, 4)	58s
e2e_windows (windows-2025, 22, esbuild, 2)	53s
e2e_windows (windows-2025, 22, esbuild, 5)	1m 22s
e2e_windows (windows-2025, 22, esbuild, 4)	54s
e2e_windows (windows-2025, 22, esbuild, 3)	50s
e2e_windows (windows-2025, 22, npm, 5)	55s
e2e_windows (windows-2025, 22, esbuild, 1)	54s
publish-snapshots	0s
Browser Compatibility Tests	0s
test	0s
e2e-snapshots	0s
e2e-package-managers	0s
e2e	0s
	14m 43s

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