async findConfigFileForPath(dirPath) {
		assertValidFilePath(dirPath);

		const { configFilePath } = await this.#locateConfigFileToUse();

		return configFilePath;
	}
Returns the config file path for the given directory. This will either use
the override config file that was specified in the constructor options or
search for a config file from the directory of the file being linted.
@param {string} dirPath The directory path to get the config file path for.
@returns {Promise<string|undefined>} The config file path or `undefined` if not found.
@throws {Error} If `fileOrDirPath` is not a non-empty string.
@throws {Error} If `fileOrDirPath` is not an absolute path.