message: Fix return value typing
diff: @@ -112,7 +112,7 @@ export class SfdxConfigAggregator {
  * @returns {string | boolean} The value of the property.
  * @throws {Error} If there is an attempt to get a property that's not supported.
  */
  - public getPropertyValue(key: string): string {
  + public getPropertyValue(key: string): string | boolean {
  if (this.getAllowedProperties().some((element) => key === element.key)) {
  return this.getConfig()[key];
  } else {
  