Bump @springio/antora-extensions from 1.14.7 to 1.14.11 in /docs (#971) #92

Job	Run time
deploy / setup	5s
deploy / Build 3.3.x (JDK 21)	5m 50s
deploy / Build 3.3.x (JDK 17)	1h 0m 15s
deploy / Build 3.3.x (JDK 25)	5m 23s
deploy / Trigger CI for non-default branches	0s
	1h 11m 33s

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