Forces Powershell to use tls1.2

Powershell defaults to tls 1.0 - This forces powershell to use tls 1.2
Tls 1.2 is supported in all current microsoft operating systems and
needed to download chocolatey.

Fixes: https://github.com/nodejs/node/issues/33140
Backport-PR-URL: https://github.com/nodejs/node/pull/34461
PR-URL: https://github.com/nodejs/node/pull/33609


Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>