SSL verify peer checkbox wants to be always checked

[pdzionek]

Describe the bug
SSL verify check box is always checked, even though it shouldn't. It happens in two cases, when you add a new node and you uncheck the box to run "Test Connection" it checks it by itself, which is really annoying. You have to uncheck it again, before adding the node. And another case is when you edit the resource, which was created with unchecked ssl verify. Every time, you edit it is always checked, so you have to remember to uncheck it before submitting changes.

To Reproduce

Steps to reproduce the behavior in Create Compute Resource:

1. Go to 'Infrastructure -> Compute Resource '
2. Click on 'Create Compute resource'
3. Choose Proxmox provider
4. Type in the proper url and login credentials.
5. Uncheck "SSL Verify peer"
6. Click "Test Failed" button
7. "SSL verify peer" is checked again

Or

Steps to reproduce the behavior in Edit Compute Resource:

1. Go to 'Infrastructure -> Compute Resource '
2. Click on 'Your proxmox node resource'
3. Click 'Edit button'
4. "SSL verify peer" is checked, even when it should not be.

Expected behavior
"SSL verify peer" should be consistent with data provided by the user. If you create a compute resource with disabled ssl verify peer, it should be in that state in Edit screen. Also it should beave

Foreman - Proxmox versions
foreman 1.21.3-1
ruby-foreman-fog-proxmox 0.6.0-1
Proxmox cluster 5.3.7