Build

Bump spring to 3.3.7 #4852

# to view logs

Job	Run time
build	7m 18s
lighty_rcgnmi_app_test / build	6m 3s
lighty_rnc_app_test / build	7m 20s
lighty_rnc_cluster_app_test / build	8m 2s
	28m 43s

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