[tests-only] [full-ci] Add trashbin API tests for deleting files shared with a group

[phil-davis]

Description

Add test scenarios to demonstrate the behavior of the trashbin when files or folders are deleted from a share.

• if the sharee deletes the file or folder then the deleted file(s) go in the trashbin of the sharee and sharer, but not the trashbin of anyone else who received the share (e.g. when the share was to a group)
• if the sharer deletes the file or folder then the deleted file(s) go in the trashbin of the sharer only

The "rule" here is that the sharer always has access to the file(s) in their trashbin. The sharee that deletes something also has it in their trashbin (so that they can restore it if/when they realise that they accidentally deleted it)

I thought that we already had scenarios like this, but I couldn't find any - so I added them.

How Has This Been Tested?

CI

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:
• Changelog item, see TEMPLATE

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[kiranparajuli589]

https://drone.owncloud.com/owncloud/core/32986/34/10
random failure due to services not ready, ci restarted

[phil-davis]

I will rebase - this is a lot of commits behind master now.