feat(await-async-queries): add auto-fix

[y-hsgw]

Checks

• I have read the contributing guidelines.

Changes

• Add a fixer for the await-async-queries rule (add 'await ' before the async queries)
• Update docs

Context

Fixes #914
also some of #202

Reference: #917

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.44%. Comparing base (7ab7356) to head (d22ff12).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1077      +/-   ##
==========================================
+ Coverage   96.41%   96.44%   +0.02%     
==========================================
  Files          50       50              
  Lines        2679     2700      +21     
  Branches     1099     1107       +8     
==========================================
+ Hits         2583     2604      +21     
  Misses         96       96              

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[Belco90]

Looks great! Just a small nitpick.

[Belco90]

nitpick: What do you think of this alternative to avoid branching the code with duplicated parts? (the IdentifierNodeFixer mainly)

Suggested change

	if (functionExpression.async) {
	return IdentifierNodeFixer;
	} else {
	/**
	* Mutate the actual node so if other nodes exist in this
	* function expression body they don't also try to fix it.
	*/
	functionExpression.async = true;
	return [
	IdentifierNodeFixer,
	fixer.insertTextBefore(functionExpression, 'async '),
	];
	}
	const ruleFixes = [IdentifierNodeFixer];
	if (!functionExpression.async) {
	/**
	* Mutate the actual node so if other nodes exist in this
	* function expression body they don't also try to fix it.
	*/
	functionExpression.async = true;
	ruleFixes.push(
	fixer.insertTextBefore(functionExpression, 'async ')
	);
	}
	return ruleFixes;