test: move require('http2') after crypto check

This test currently fails when configured --without-ssl:
Error [ERR_NO_CRYPTO]:
Node.js is not compiled with OpenSSL crypto support

This commit moves the require of http2 to come after the crypto check to
avoid the error.

PR-URL: https://github.com/nodejs/node/pull/19907


Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>