fix: missing getTargetFile type

[johnnyreilly]

This PR adds the getTargetFile option which is missing from the type definition.

replace-in-file/src/helpers/config.js

Line 112 in fc5af6d

getTargetFile: source => source,

For now I'm patching in my own code like this:

import "replace-in-file";

declare module "replace-in-file" {
  export interface ReplaceInFileConfig {
    getTargetFile?(source: string): string;
  }
}

[adamreisnz]

Thank you!

[adamreisnz]

Released in 8.3.0