make CI work with owncloud 10.10

[individual-it]

web tests failed with owncloud 10.10 in https://drone.owncloud.com/owncloud/web/25725/34/13 (trashbin) and oC10 was pinned to 10.9.1 in #7016

need to investigate what is different with trashbin in 10.9 and 10.10 and why the tests fail

[individual-it]

first try in #7020

[phil-davis]

Note: this could be one of the 10.10.0 changes that impacts on a client:
Bugfix - Default for propfind depth infinity adjusted: #40016

That is now disabled by default. The setting is advertised in capabilities, but if a client does not check the capabilities setting then it may send depth-infinity requests and they will not work. Work-around would be to enable depth-infinity in CI. But clients should really have code to check the capabilities.

[saw-jan]

first try in #7020

CI passed. Maybe there's no more task to do?

[individual-it]

CI is green after #7020
further discussion is needed to decide if that is a bug or a feature, see #7029