RQA-2830 fix mac dmg to be x64 binary and use x64 bundled python to pip install (#15624)

## Replaces #15618 with PR against branch name ending in
`app-build-internal` to trigger a build

## Overview

- <https://opentrons.atlassian.net/browse/RQA-2830>
- `macos-11` GitHub runner was intel and now we use macos-latest that is
arm
[doc](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories)
- specify --x64 argument to electron-builder
- ~~per
[doc](https://github.com/actions/setup-python?tab=readme-ov-file#supported-architectures)
x64 python should be installed so the pip install will be the right
platform. I'm not confident in this.~~
- see comment in #15618
- we need to use the python we download on mac to do the pip install so
the installed packages match the platform correctly

## Test Plan

- [x] build locally and see that it works
- [x] watch CI and install the built package
- [x] validate that once the package dmg is x64 that analysis works
(python has packages with the right arch)

# Review requests

- This the right approach?

# Risk assessment

High because our .dmg currently cannot analyze protocols 2.0.0-alpha.0
internal release build.

Author: y3rsh

app-shell/Makefile

@@ -122,7 +122,7 @@ dist-posix: package-deps
 
 .PHONY: dist-osx
 dist-osx: package-deps
-	$(builder) --mac
+	$(builder) --mac --x64
 	$(MAKE) _dist-collect-artifacts
 
 .PHONY: dist-linux

app-shell/scripts/before-pack.js

@@ -118,7 +118,16 @@ module.exports = function beforeBuild(context) {
 
       // TODO(mc, 2022-05-16): explore virtualenvs for a more reliable
       // implementation of this install
-      return execa(HOST_PYTHON, [
+      console.log(
+        `Installing python native deps using ${path.join(
+          PYTHON_DESTINATION,
+          'python3.10'
+        )}`
+      )
+      const invokablePython = platformName.includes('darwin')
+        ? path.join(PYTHON_DESTINATION, 'python/bin/python3.10')
+        : HOST_PYTHON
+      return execa(invokablePython, [
         '-m',
         'pip',
         'install',