When building the MS Windows package, the PYTHON_VERSION variable is not
used and the WinPython path is hard coded in the Makefile and NSI file.
This prevent the usage of a newer version of Python.
With this commit, the PYTHON_VERSION is used to compute the WinPython
Python directory. That way, this directory can be derived from
package.py command line argument --vm-winxp-python-version.
Also the less windows binaries are not packaged anymore.
closesodoo/odoo#39821
X-original-commit: ac90d8584f99e24aed931eb5186c360f9dfbf399
Signed-off-by: Christophe Monniez (moc) <moc@odoo.com>