How to specify port, on which debugger will launch Go app, in VSCode

I am trying to debug Go app. Launch config works fine, but seems dlv picking up random port every time debugger starts, which I can see from my logs in console the port is "0"(which means random one):

2021/12/23 15:16:57 Serving on port: 0

Compare to running without debugger:

2021/12/23 15:17:23 Serving on port: 8080

When I type in terminal lsof -i tcp I see the following, the port is random everytime:

__debug_b 19909 userName    7u  IPv6 0xd6d310c29592c12f      0t0  TCP *:60179 (LISTEN)

launch.json config:

{
  "name": "Launch",
  "type": "go",
  "request": "launch",
  "mode": "debug",
  "program": "cmd/main.go",
  "showLog": true,
  "verboseDiagnosticLogging": true,
}

specifying "port" in config doesn't work for me.
Can I somehow configure debugger to pick up a specific port, 8080 in my case?