test: add hasCrypto check to https-agent-constructor

Currently this test will fail with the following error message when
configured --without-ssl:
Error: Node.js is not compiled with openssl crypto support

This commit checks for crypto and skips this tests if such support
is not available.

PR-URL: #12987
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

test/parallel/test-https-agent-constructor.js

@@ -1,5 +1,9 @@
 'use strict';
-require('../common');
+const common = require('../common');
+if (!common.hasCrypto) {
+  common.skip('missing crypto');
+  return;
+}
 const assert = require('assert');
 const https = require('https');