pyoxidizer: disable using in-memory resources It's possible that the errors are due to using an incompatible version of PyOxidizer; unfortunately the README.md file in this directory says to fetch a copy of PyOxidizer matching the commit in this pyoxidizer.bzl file, and yet the pyoxidizer.bzl file does not actually have a commit mentioned in it. By disabling in-memory modules, this appears to work on all platforms using the current head version of PyOxidizer, so let's disable them for now. Sample error (during `pyoxidizer build`): ``` error[PYOXIDIZER_PYTHON_EXECUTABLE]: adding PythonExtensionModule<name=hgext.fsmonitor.pywatchman.bser> Caused by: extension module hgext.fsmonitor.pywatchman.bser cannot be loaded from memory but memory loading required --> ./pyoxidizer.bzl:140:5 | 140 | exe.add_python_resources(exe.pip_install(["--verbose", ROOT])) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ add_python_resources() error: adding PythonExtensionModule<name=hgext.fsmonitor.pywatchman.bser> Caused by: extension module hgext.fsmonitor.pywatchman.bser cannot be loaded from memory but memory loading required ``` Differential Revision: https://phab.mercurial-scm.org/D11697