ci: better naming for various steps/jobs (#11752) #1

Job	Run time
argoexec-image	4m 29s
UI	3m 48s
Unit Tests	8m 27s
E2E Tests (test-executor, minimal)	14m 27s
E2E Tests (test-corefunctional, minimal)	15m 53s
E2E Tests (test-functional, minimal)	23m 30s
E2E Tests (test-api, mysql)	9m 15s
E2E Tests (test-cli, mysql)	17m 20s
E2E Tests (test-cron, minimal)	9m 22s
E2E Tests (test-examples, minimal)	8m 3s
E2E Tests (test-plugins, plugins)	5m 54s
E2E Tests (test-java-sdk, minimal)	5m 52s
E2E Tests (test-python-sdk, minimal)	4m 51s
E2E Tests (test-executor, v1.25.11-k3s1, minimal)	13m 45s
E2E Tests (test-corefunctional, v1.25.11-k3s1, minimal)	14m 25s
E2E Tests (test-functional, v1.25.11-k3s1, minimal)	23m 55s
Codegen	6m 54s
Lint	8m 22s
	3h 18m 32s

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