Fix: customize demo cluster port #5391

Job	Run time
unpack-envvars	1s
flyteadmin integration tests image / build_docker	5m 4s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	4m 46s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	5m 43s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	4m 25s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	6m 9s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	5m 41s
Dry Run Goreleaser	7m 37s
Test Getting started	6m 57s
Check Go Generate (datacatalog) / Go Generate	1m 38s
Check Go Generate (flyteadmin) / Go Generate	2m 14s
Check Go Generate (flytecopilot) / Go Generate	1m 26s
Check Go Generate (flytectl) / Go Generate	2m 3s
Check Go Generate (flytepropeller) / Go Generate	2m 16s
Lint (datacatalog) / Run Lint	2m 25s
Lint (flyteadmin) / Run Lint	3m 6s
Lint (flytectl) / Run Lint	2m 37s
Lint (flyteidl) / Run Lint	1m 55s
Lint (flyteplugins) / Run Lint	3m 1s
Lint (flytepropeller) / Run Lint	3m 29s
Lint (flytestdlib) / Run Lint	2m 35s
Unit Tests (flyteadmin) / Run Unit Test	4m 36s
Unit Tests (datacatalog) / Run Unit Test	3m 35s
Unit Tests (flytecopilot) / Run Unit Test	2m 41s
Unit Tests (flytectl) / Run Unit Test	3m 40s
Unit Tests (flyteplugins) / Run Unit Test	6m 50s
Unit Tests (flytestdlib) / Run Unit Test	4m 12s
Unit Tests (flytepropeller) / Run Unit Test	4m 20s
Integration Test (flyteadmin) / Integration tests	6m 6s
	1h 51m 8s

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