Protector upgrade is not done

[fiammybe]

Bug description

The protector module is not updated when doing an upgrade from ImpressCMS 1.3.x -> 1.4.0. This is problematic because only protector 4.0 runs under PHP7. People upgrading from older versions will not be able to switch to a new PHP version in this situation.

This is because a large part of protector is stored in the trustpath, and the installation is done on install of ImpressCMS. No upgrade procedure is available with the current version of ImpressCMS or Protector.

To Reproduce

Steps to reproduce the behavior:

1. Upgrade ImpressCMS 1.3.11 -> 1.4.0
2. Open your site
3. --> Working instalation
4. Switch to PHP7
5. --> Broken installation

Expected behavior

An upgrade of ImpressCMS should trigger an upgrade of the protector module.

Additional context

This problem exists in all previous ImpressCMS versions, but tere was never such a breaking change for Protector that needed a new version until now.