[stable10] Add a command to poll incoming federated shares for updates

[VicDeo]

Description

Backport of #34903

Allow manually poll federated share updates and update the storage root
to help the sync client properly detect federated share updates

Related Issue

• Fixes <issue_link>

Motivation and Context

How Has This Been Tested?

1. setup two OC instances oc1 and oc2
2. create a federated share from user@oc1 to user@oc2 with a deep nested folder structure
3. Accept the share by user@oc2
4. Setup a desktop client for user@oc2, let it sync the data
5. update the share by user@oc1 (e.g by uploading something into /really/deeply/nested/folder)
6. wait for the client - nothing is synced
7. run php occ incomingShares:sync
8. wait a bit - the changes is synced

Screenshots (if appropriate):

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:

[PVince81]

👍

[PVince81]

(please always pick some reviewers!)