feat: add server timing to responses #475

Job	Run time
js-test-and-release / check	2m 26s
js-test-and-release / test-chrome-webworker	59s
js-test-and-release / test-chrome	1m 4s
js-test-and-release / test-firefox	48s
js-test-and-release / test-node (windows-latest, lts/*)	4m 20s
js-test-and-release / test-node (ubuntu-latest, lts/*)	41s
js-test-and-release / test-electron-main	55s
js-test-and-release / test-electron-renderer	45s
js-test-and-release / test-node (macos-latest, lts/*)	2m 36s
js-test-and-release / test-firefox-webworker	52s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	54s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	1m 2s
js-test-and-release / test-webkit (macos-latest, lts/*)	2m 35s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	3m 1s
js-test-and-release / release-check	0s
js-test-and-release / release	0s
	22m 58s

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