chore: fix JavaScript lint errors

PR-URL: #8221
Closes: #8208

Reviewed-by: Philipp Burckhardt <[email protected]>

Author: KoolDrip

lib/node_modules/@stdlib/assert/is-bigint/benchmark/benchmark.js

@@ -16,8 +16,6 @@
 * limitations under the License.
 */
 
-/* global BigInt */
-
 /* eslint-disable no-new-wrappers, no-empty-function, stdlib/require-globals */
 
 'use strict';
@@ -27,6 +25,7 @@
 var bench = require( '@stdlib/bench' );
 var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
 var hasBigInts = require( '@stdlib/assert/has-bigint-support' );
+var BigInt = require( '@stdlib/bigint/ctor' );
 var pkg = require( './../package.json' ).name;
 var isBigInt = require( './../lib' );