chore: add root commitlint configuration

We need to add a root configuration file in order to play nice with
Commitizen, as commitlint assumes it is able to dynamically resolve a
config file.

Author: kgryte

.commitlintrc.js

@@ -0,0 +1,28 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var config = require( './etc/commitlint/.commitlintrc.js' ); // eslint-disable-line node/no-unpublished-require
+
+
+// EXPORTS //
+
+module.exports = config;