Ambiguous import problem with the antlr module

[jzheng13]

The import needs to be updated in go.mod in accordance to the newest changes made to the antlr package, or the versioning should be limited so that it only downloads the compatible version.

github.com/test_user/test_repo imports
	github.com/caibirdme/yql imports
	github.com/antlr/antlr4/runtime/Go/antlr: ambiguous import: found package github.com/antlr/antlr4/runtime/Go/antlr in multiple modules:
	github.com/antlr/antlr4 v0.0.0-20210121092344-5dce78c87a9e (/Users/me/go/pkg/mod/github.com/antlr/[email protected]/runtime/Go/antlr)
	github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210826220005-b48c857c3a0e (/Users/me/go/pkg/mod/github.com/antlr/antlr4/runtime/!go/[email protected])

Antlr issue: https://github.com/antlr/antlr4/issues/3188