MFH: r502940 r503843

www/npm: Fix the python executable name

PR: 238204
Reported by: run failure
Approved by: portmgr (blanket: ports/framework (python) compliance)

Compile and install .pyc files for node-gyp

• Bump PORTREVISION for package change

PR: 238243
Submitted by: Hiroki Tagato <tagattie@yandex.com>

Approved by: ports-secteam (blanket(s): run/packaging fix, ports (python) compliance)