chore(makefile): fix linux integration test host

[donch1989]

Because

• The integration test host for linux system in Makefile is wrong
• Currently, the posgreSQL set max_connection: 100. But here we set each backend's connection pool size to 1024. 1024 connection * 4 backend is far exceed 100. We should make it smaller.
• The triton.nvidiaVisibleDevices = all config will stop the triton server running on cpu-only machine
• The console e2e test won't work on linux machine

This commit

• Fix integration test host for linux system in Makefile
• Update connection pool size
• Pass nvidiaVisibleDevices from env.
• Fix console e2e test by removing serverApiGatewayBaseUrl from makefile helm install