fix: simplify parserOpts resolution

Author: armano2

@commitlint/load/src/utils/load-parser-opts.ts

@@ -4,10 +4,6 @@ function isObjectLike(obj: unknown): obj is Record<string, unknown> {
 	return Boolean(obj) && typeof obj === 'object'; // typeof null === 'object'
 }
 
-function isPromiseLike(obj: unknown): obj is Promise<unknown> {
-	return isObjectLike(obj) && typeof (obj as any).then === 'function';
-}
-
 function isParserOptsFunction<T extends ParserPreset>(
 	obj: T
 ): obj is T & {
@@ -27,9 +23,19 @@ export async function loadParserOpts(
 	// Await for the module, loaded with require
 	const parser = await pendingParser;
 
-	// Await parser opts if applicable
-	if (isPromiseLike(parser.parserOpts)) {
-		parser.parserOpts = ((await parser.parserOpts) as any).parserOpts;
+	// exit early if there is no opts
+	if (!parser.parserOpts) {
+		return parser;
+	}
+
+	// Pull nested parserOpts, might happen if overwritten with a module in main config
+	if (typeof parser.parserOpts === 'object') {
+		// Await parser opts if applicable
+		const opts = await parser.parserOpts;
+		parser.parserOpts =
+			isObjectLike(opts) && isObjectLike(opts.parserOpts)
+				? opts.parserOpts
+				: undefined;
 		return parser;
 	}
 
@@ -61,12 +67,5 @@ export async function loadParserOpts(
 		});
 	}
 
-	// Pull nested parserOpts, might happen if overwritten with a module in main config
-	if (
-		isObjectLike(parser.parserOpts) &&
-		typeof parser.parserOpts.parserOpts === 'object'
-	) {
-		parser.parserOpts = parser.parserOpts.parserOpts;
-	}
 	return parser;
 }