feat(kms-connector): keygen on ethereum #7629

Job	Run time
kms-connector-tests/check-changes	8s
kms-connector-tests/start-runner	1m 1s
kms-connector-tests/test-connector (bpr)	7m 26s
kms-connector-tests/stop-runner	20s
kms-connector-tests/check-changes	8s
kms-connector-tests/start-runner	51s
kms-connector-tests/test-connector (bpr)	7m 24s
kms-connector-tests/stop-runner	20s
kms-connector-tests/check-changes	6s
kms-connector-tests/start-runner	1m 0s
kms-connector-tests/test-connector (bpr)	7m 19s
kms-connector-tests/stop-runner	20s
	26m 23s

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