url: fix isURL detection by checking path

Fixes: #48921
PR-URL: #48928
Backport-PR-URL: #50105
Fixes: getsentry/sentry-javascript#8552
Fixes: request/request#3458
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Matthew Aitken <maitken033380023@gmail.com>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>

Author: Zhangdroid

test/parallel/test-url-is-url.js

@@ -9,3 +9,8 @@ const { isURL } = require('internal/url');
 
 assert.strictEqual(isURL(new URL('https://www.nodejs.org')), true);
 assert.strictEqual(isURL(parse('https://www.nodejs.org')), false);
+assert.strictEqual(isURL({
+  href: 'https://www.nodejs.org',
+  protocol: 'https:',
+  path: '/',
+}), false);