Update K8s plugin config docs (#5070) #2846

Job	Run time
unpack-envvars	1s
Docker Build Images (datacatalog) / build_docker	2m 10s
Docker Build Images (flyteadmin) / build_docker	2m 47s
Docker Build Images (flytecopilot) / build_docker	3m 10s
Docker Build Images (flytepropeller) / build_docker	3m 43s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	2m 25s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	2m 42s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	3m 22s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	3m 37s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	4m 25s
Check Go Generate (datacatalog) / Go Generate	1m 43s
Check Go Generate (flyteadmin) / Go Generate	2m 25s
Check Go Generate (flytecopilot) / Go Generate	5m 20s
Check Go Generate (flytepropeller) / Go Generate	2m 31s
Lint (datacatalog) / Run Lint	2m 28s
Lint (flyteadmin) / Run Lint	3m 6s
Lint (flyteplugins) / Run Lint	3m 1s
Lint (flytestdlib) / Run Lint	2m 44s
Lint (flyteidl) / Run Lint	3m 42s
Lint (flytepropeller) / Run Lint	3m 22s
Unit Tests (datacatalog) / Run Unit Test	3m 6s
Unit Tests (flyteadmin) / Run Unit Test	4m 38s
Unit Tests (flytecopilot) / Run Unit Test	3m 34s
Unit Tests (flyteplugins) / Run Unit Test	4m 8s
Unit Tests (flytepropeller) / Run Unit Test	4m 20s
Unit Tests (flytestdlib) / Run Unit Test	6m 7s
Integration Test (flyteadmin) / Integration tests	5m 31s
	1h 30m 8s

Provide feedback