Fix: customize demo cluster port #5623

Job	Run time
unpack-envvars	1s
flyteadmin integration tests image / build_docker	4m 36s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	4m 30s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	5m 41s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	4m 36s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	43s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	5m 58s
Test Getting started	12m 34s
Dry Run Goreleaser	1m 38s
Check Go Generate (flyteadmin) / Go Generate	2m 23s
Check Go Generate (flytecopilot) / Go Generate	1m 28s
Check Go Generate (datacatalog) / Go Generate	1m 40s
Check Go Generate (flytectl) / Go Generate	2m 15s
Check Go Generate (flytepropeller) / Go Generate	2m 22s
Lint (datacatalog) / Run Lint	2m 39s
Lint (flyteadmin) / Run Lint	3m 8s
Lint (flytecopilot) / Run Lint	2m 17s
Lint (flytectl) / Run Lint	2m 50s
Lint (flyteidl) / Run Lint	1m 59s
Lint (flyteplugins) / Run Lint	3m 13s
Lint (flytepropeller) / Run Lint	3m 21s
Unit Tests (datacatalog) / Run Unit Test	3m 8s
Unit Tests (flytecopilot) / Run Unit Test	2m 46s
Unit Tests (flyteadmin) / Run Unit Test	4m 49s
Unit Tests (flytectl) / Run Unit Test	3m 47s
Unit Tests (flyteplugins) / Run Unit Test	4m 0s
Lint (flytestdlib) / Run Lint	2m 42s
Unit Tests (flytepropeller) / Run Unit Test	4m 16s
Unit Tests (flytestdlib) / Run Unit Test	3m 47s
Integration Test (flyteadmin) / Integration tests	5m 47s
	1h 44m 54s

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