Incorrect documentation for additional context properties for string.pattern.* errors

[davidjamesstone]

Context

• node version: 12
• module version: 17.4.2

The docs for

string.pattern.base string.pattern.name string.pattern.invert.base string.pattern.invert.name

states the additional context properties contain a pattern key. The key that is passed is actually regex

I can do a PR for this