[FIX] views.edit: import MockRequest based on Odoo version

[jdkirkwood]

Description

In 19.0, MockRequest is moved to http_routing.tests.common.

Ensure that config["test_enable"] is set before import MockRequest to avoid traceback message in logs - no longer any need for mute_logger().

Reported by: YOMA 👍

All Submissions:

• My commit respects the Odoo commit guideline
• My commit message respects the commit template
• I have used pre-commit [other files/methods are raising errors - ignore for now]
• The PR contains only my modification and no other external commit

Sh/Runbot:

• The commits pass test and the branch is green
• Unit tests have been implemented / standard ones rewritten
• The Staging is ISO-Prod and will contain only this dev

Upgrade:

• The data affected (if any) by the changes has been migrated

Maintenance reminders:

• Always bump the version of the manifest on the affected modules.
• Notify the developer responsible for the initial development task (when this is relevant).