fix(inject,replace): add types for sourceMap option

[danielroe]

Rollup Plugin Name: replace, inject

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

Description

This PR adds types for the sourceMap option which is respected by both plugins but not currently included in the typing.

• replace:

  plugins/packages/replace/src/index.js

  Lines 106 to 108 in 93cf0a7

  	function isSourceMapEnabled() {
  	return options.sourceMap !== false && options.sourcemap !== false;
  	}

• inject:

  plugins/packages/inject/src/index.js

  Line 82 in cfb4555

  const sourceMap = options.sourceMap !== false && options.sourcemap !== false;

[danielroe]

Happy to split this into two PRs if you prefer (which I think would make the PR title format check happier).

[shellscape]

It was the space after the comma that made it unhappy 😄 All fixed

[shellscape]