Disallow to delete a file during the processing.

[2403905]

Describe the bug

We want to disallow deleting a file during the processing.

Related to #7909

Steps to reproduce

1. Login as admin

driveid=`curl -ku admin:admin https://localhost:9200/graph/v1.0/me/drives | jq -c '.[] | .[] | select(.driveAlias | contains("personal")) | .id' -r`

curl -ku admin:admin -XPUT -d"content" 'https:/localhost:9200/dav/spaces/'$driveid'/file.txt'
curl -ku admin:admin -XDELETE 'https://localhost:9200/dav/spaces/'$driveid'/file.txt'

Expected behavior

Disallow to delete a file during the processing like on the webUI to prevent collecting the orphan uploads.

Actual behavior

Collect the orphan uploads because the destination doesn't exist when post-processing started.

Setup

Please describe how you started the server and provide a list of relevant environment variables or configuration files.

POSTPROCESSING_DELAY=10s

Additional context

Add any other context about the problem here.