fix: flaky test in TestProxySocketsAdminFacade (#1474) #19

Job	Run time
build-jimm-server	4m 45s
build-and-release-jaas-plugin / build	3m 41s
build-and-release-jimmctl / build	7m 6s
build-and-release-jaas-plugin / publish	19s
build-and-release-jimmctl / publish	27s
	16m 18s

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