Bump org.apache.hadoop:hadoop-common from 2.10.1 to 3.4.0 #270

Job	Run time
build-and-test-python (dl-on-flink-framework)	30s
build-and-test (dl-on-flink-framework)	34s
build-and-test-python (dl-on-flink-tensorflow)	33s
build-and-test (dl-on-flink-operator)	48s
build-and-test-python (dl-on-flink-tensorflow-2.x)	45s
build-and-test (dl-on-flink-tensorflow-common)	45s
build-and-test-python (dl-on-flink-pytorch)	36s
build-and-test (dl-on-flink-tensorflow)	33s
build-and-test (dl-on-flink-tensorflow-2.x)	38s
build-and-test (dl-on-flink-pytorch)	39s
build-and-test (dl-on-flink-lib)	38s
build-and-test (dl-on-flink-examples)	3m 7s
build-and-test (dl-on-flink-examples/dl-on-flink-examples-pytorch)	55s
build-and-test (dl-on-flink-examples/dl-on-flink-examples-tensorflow)	36s
build-and-test (dl-on-flink-examples/dl-on-flink-examples-tensorflow-2.x)	37s
	12m 14s

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