chore: enable errorlint linter on applicationset folder (#18618) #83

Job	Run time
changes	6s
Build, test & lint UI code	2m 15s
Check changes to generated code	5m 49s
Ensure Go modules synchronicity	44s
Build & cache Go code	2m 59s
Lint Go code	4m 20s
Run unit tests for Go packages	4m 33s
Run unit tests with -race for Go packages	8m 8s
Run end-to-end tests (v1.29.1)	46m 18s
Run end-to-end tests (v1.28.6)	47m 17s
Run end-to-end tests (v1.27.10)	47m 25s
Run end-to-end tests (v1.26.13)	45m 52s
Run end-to-end tests (v1.25.16)	46m 48s
Process & analyze test artifacts	23s
E2E Tests - Composite result	1s
	4h 22m 58s

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