Reenable mocha test in autopkgtest

debian/tests/control

-Tests: require
-Depends: node-get-value
+Test-Command: /usr/share/pkg-js-autopkgtest/runner require
+Depends: @, pkg-js-autopkgtest
+Restrictions: superficial
+
+Test-Command: /usr/share/pkg-js-autopkgtest/runner
+Depends: @, @builddeps@, pkg-js-autopkgtest, mocha, node-micromatch, node-minimist
+Restrictions: allow-stderr, skippable

debian/tests/pkg-js/test

+mocha -R spec --timeout 10000 test

debian/tests/require

-#!/bin/sh
-set -e
-nodejs -e "require('get-value');"