Fix `es2020.intl.d.ts` formatting #35681

Job	Run time
browser-integration	1m 57s
knip	32s
Test Node 14 on ubuntu-latest	11m 56s
smoke	56s
baselines	8m 55s
Test Node 24 on ubuntu-latest	8m 53s
format	30s
package-size	1m 28s
lint	55s
Test Node 24 on windows-latest	11m 8s
coverage	11m 20s
typecheck	48s
self-check	1m 0s
Test Node 14 on windows-latest	14m 16s
misc	28s
Test Node lts/* on ubuntu-latest with --no-bundle	11m 10s
required	3s
	1h 26m 15s

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