test: hasCrypto https-server-keep-alive-timeout

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.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines

Affected core subsystem(s)

test