build(deps): bump k8s.io/client-go from 0.28.2 to 0.28.4 #2725

Job	Run time
Check Documentation formatting and links	2m 19s
E2E tests (kindest/node:v1.28.0)	4m 51s
Jsonnet formatter	1m 50s
E2E tests (kindest/node:v1.27.3)	3m 29s
Generate (macos-latest)	3m 45s
Generate (ubuntu-latest)	1m 29s
Jsonnet linter	28s
Run security analysis on manifests	28s
Unit tests	1m 43s
End-to-End Test Results	1s
	20m 23s

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