fix: don't optimize react/jsx-runtime by default when running in Node #8003

Job	Run time
test (ubuntu-latest, 18)	10m 15s
test (ubuntu-latest, 20)	11m 51s
test (macos-latest, 20)	12m 1s
test (windows-latest, 20)	8m 5s
test-browser-windows (chrome, chromium)	8m 36s
lint	56s
test-browser-windows (edge, webkit)	6m 53s
test-browser (chrome, chromium)	3m 27s
test-browser (firefox, firefox)	3m 28s
test-ui	48s
test-ui-e2e (ubuntu-latest)	1m 51s
test-browser (edge, webkit)	3m 28s
typecheck	1m 45s
test-ui-e2e (macos-latest)	8m 51s
test-ui-e2e (windows-latest)	4m 15s
	1h 26m 30s

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