Golang doesn't seem to be supported[Bug]

[satish-chef]

Describe the bug
I installed this plugin vim on my Mac. My OS X version is 11.6.

To Reproduce
Steps to reproduce the behavior, Please provide a minimal piece of code to produce this issue, along with it's filename and it's filetype detected by vim (via :set ft?), a piece of text is better than a picture here. For example:

File: bug.js, filetype=javascript

var pair = {x: 1, y: 2}
Steps:

Open file via vim example.go
See the color of { and } around text {x: 1, y: 2} is not getting colored.
Expected behavior
A clear and concise description of what you expected to happen.
Brackets are supposed to be colored.

Screenshots
Provide a screenshot to describe what you got.

Additional context
Are you using some third-party syntax plugins? Add any other context about the problem here.
Additional plugins that I have installed in vim:

  - rainbow_parentheses.vim: Already installed                 |~
  - rainbow: Already installed                                 |~
  - vim-go: Already installed                                  |~
  - coc.nvim: Already installed                                |~