Markdown Lint blocking pipeline

[danielnginx]

Describe the bug

When you have MD files with line length greater than 120 the pipeline is blocked by that rule.

To Reproduce

Add a line on a MD file outside of the "docs" folder with more than 120 characters and push a pull request

Expected behavior

The pipeline should pass independent of the line length on MD files

This line should be removed from the configuration or a greater limit set: https://github.com/nginxinc/kubernetes-ingress/blob/c7881e7703ea305fe403d2f8024297f6e10d5c22/build/README.md

### Tasks