Update Propeller architecture documentation (#5117) #2847

Job	Run time
unpack-envvars	1s
Docker Build Images (datacatalog) / build_docker	2m 47s
Docker Build Images (flyteadmin) / build_docker	3m 10s
Docker Build Images (flytecopilot) / build_docker	2m 30s
Docker Build Images (flytepropeller) / build_docker	3m 14s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	3m 3s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	3m 48s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	2m 58s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	3m 33s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	3m 27s
Lint (datacatalog) / Run Lint	2m 34s
Lint (flyteadmin) / Run Lint	3m 7s
Lint (flyteidl) / Run Lint	1m 58s
Lint (flyteplugins) / Run Lint	2m 58s
Lint (flytepropeller) / Run Lint	3m 15s
Lint (flytestdlib) / Run Lint	2m 36s
Unit Tests (flyteadmin) / Run Unit Test	4m 33s
Unit Tests (datacatalog) / Run Unit Test	3m 5s
Unit Tests (flytecopilot) / Run Unit Test	2m 44s
Unit Tests (flyteplugins) / Run Unit Test	5m 34s
Unit Tests (flytepropeller) / Run Unit Test	4m 18s
Check Go Generate (datacatalog) / Go Generate	1m 46s
Check Go Generate (flyteadmin) / Go Generate	4m 14s
Check Go Generate (flytecopilot) / Go Generate	1m 33s
Check Go Generate (flytepropeller) / Go Generate	2m 19s
Unit Tests (flytestdlib) / Run Unit Test	6m 15s
Integration Test (flyteadmin) / Integration tests	6m 11s
	1h 27m 31s

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