bug(node): ESM packages need .js extension for modules #4204

Job	Run time
accessibility-checker-engine-test (18.x)	3m 12s
accessibility-checker-test-basic2 (18.x)	9m 21s
accessibility-checker-test-basic-windows (18.x)	12m 41s
accessibility-checker-test-basic (14.x)	9m 53s
accessibility-checker-test-basic (18.x)	9m 26s
accessibility-checker-test-playwright (18.x)	1h 17m 53s
accessibility-checker-test-selenium (18.x)	8m 1s
accessibility-checker-test-wdio (18.x)	7m 56s
extension-test (18.x)	11m 30s
cypress-checker-test-basic (18.x)	3m 36s
act-results (18.x)	15m 15s
java-accessibility-checker-playwright-test (18.x)	8m 43s
java-accessibility-checker-selenium-test (18.x)	10m 3s
rule-deploy (18.x)	3m 44s
karma-accessibility-checker-test (18.x, karma.conf1b.js)	4m 42s
karma-accessibility-checker-test (18.x, karma.conf2b.js)	4m 42s
karma-accessibility-checker-test (18.x, karma.conf3.js)	4m 29s
	3h 25m 7s

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