[REQ] Please consider providing options disable the Go Generator generates client test code and go.mod file

Is your feature request related to a problem? Please describe.

We found several problems when using the Go generator version 6.2.1 to generate client code inside our Go project,

1. The sub package name of the test code it generates is wrong;
   expected path/to/gen/test/api_xxx.test.go

package xxx_test

import (
	"context"
	"testing"

	openapiclient "path/to/our/go/project/gen/xxx/openapi"
	// ...     
)

got

package xxx_test

import (
	"context"
	"testing"

	openapiclient "../openapi"
	// ...     
)

the xxx is packageName option pass to Go generator tool via configuration file.

BTW: the option isGoSubmodule does not help no matter set it true or false.

2. the Go generator generates client code as a Go sub-package breaks our main Go project dependency and auto-building

We have to remove go.mod go.sum from client source code folder to fix it by manual every time we update client code.

Describe the solution you'd like

Please consider providing two options noTest one for disable generating test code, and another noGoMod for diable go.mod go.sum, thanks.

https://openapi-generator.tech/docs/generators/go/#config-options

Describe alternatives you've considered

Additional context

Start with the Go generator's configuration options and the behavior that produces client tests, go.mod, and go.sum; compare the requested noTest and noGoMod options with isGoSubmodule. Done means both options are documented and reliably control generation without breaking the generated client, with coverage for the package import behavior.