Bump com.amazonaws:aws-java-sdk-qldb from 1.12.770 to 1.12.771 #3774

Job	Run time
code-style (ubuntu)	34s
integration-tests-h2	13m 28s
integration-tests-postgresql	13m 50s
tests (ubuntu)	20m 47s
tests (windows)	30m 5s
	1h 18m 44s

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