loader,test: change test name

Actually this test is not testing relative paths but href path
generated using URL class from a relative path.

Author: jlenon7

test/es-module/test-esm-loader-programmatically.mjs

@@ -56,7 +56,7 @@ describe('ESM: register loader programmatically', { concurrency: true }, () => {
     assert.strictEqual(lines[11], '');
   });
 
-  it('should be able to register loader using relative path using URL class', async () => {
+  it('should be able to register loader using href generated by URL class', async () => {
     const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [
       '--experimental-loader',
       fixtures.path('/es-module-loaders/register-loader-loader-one.mjs'),