Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows #267

Job	Run time
build-and-test (dl-on-flink-framework)	5m 2s
build-and-test-python (dl-on-flink-framework)	3m 17s
build-and-test (dl-on-flink-operator)	6m 35s
build-and-test (dl-on-flink-tensorflow-common)	2m 12s
build-and-test (dl-on-flink-tensorflow)	17m 38s
build-and-test-python (dl-on-flink-tensorflow)	9m 48s
build-and-test (dl-on-flink-tensorflow-2.x)	18m 18s
build-and-test-python (dl-on-flink-tensorflow-2.x)	10m 33s
build-and-test (dl-on-flink-pytorch)	10m 2s
build-and-test-python (dl-on-flink-pytorch)	6m 51s
build-and-test (dl-on-flink-lib)	1m 41s
build-and-test (dl-on-flink-examples)	24s
build-and-test (dl-on-flink-examples/dl-on-flink-examples-pytorch)	2m 49s
build-and-test (dl-on-flink-examples/dl-on-flink-examples-tensorflow)	1m 33s
build-and-test (dl-on-flink-examples/dl-on-flink-examples-tensorflow-2.x)	1m 9s
	1h 37m 52s

Provide feedback