run js-test in parallel

package.json

@@ -56,7 +56,7 @@
     "js-minify-standalone-esm": "terser --compress --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.esm.js.map,includeSources,url=bootstrap.esm.min.js.map\" --output dist/js/bootstrap.esm.min.js dist/js/bootstrap.esm.js",
     "js-minify-bundle": "terser --compress typeofs=false --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.bundle.js.map,includeSources,url=bootstrap.bundle.min.js.map\" --output dist/js/bootstrap.bundle.min.js dist/js/bootstrap.bundle.js",
     "js-minify-docs": "cross-env-shell terser --mangle --comments \\\"/^!/\\\" --output site/static/docs/$npm_package_version_short/assets/js/docs.min.js site/static/docs/$npm_package_version_short/assets/js/vendor/anchor.min.js site/static/docs/$npm_package_version_short/assets/js/vendor/clipboard.min.js site/static/docs/$npm_package_version_short/assets/js/vendor/bs-custom-file-input.min.js \"site/static/docs/$npm_package_version_short/assets/js/src/*.js\"",
-    "js-test": "npm-run-all js-test-karma js-test-integration",
+    "js-test": "npm-run-all --parallel js-test-karma js-test-integration",
     "js-debug": "cross-env DEBUG=true karma start js/tests/karma.conf.js",
     "js-test-karma": "karma start js/tests/karma.conf.js",
     "js-test-integration": "rollup --config js/tests/integration/rollup.bundle.js",