Bump next from 16.2.1 to 16.2.3 in /e2e/browser/test-app #5253

Job	Run time
e2e-browser (ubuntu-latest, ESS Next, false)	1m 31s
e2e-browser (ubuntu-latest, ESS PodSpaces, false)	1m 39s
e2e-browser (ESS Dev-2-3, true, ubuntu-latest)	1m 32s
e2e-browser (windows-latest, ESS Release-2-3, false)	4m 55s
e2e-browser (ubuntu-latest, ESS Release-2-3, false)	1m 29s
e2e-browser (windows-latest, ESS Next, false)	5m 56s
e2e-browser (windows-latest, ESS PodSpaces, false)	6m 28s
check	4s
	23m 34s

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