Properly add new methods to interface and document in PHPDoc for getR…

[MorrisJobke]

…ootMounts()

Introduced in #22063 and was just forgotten.

Found by Psalm in #21578 and avoids to add the typehint in the calling place \o/

[faily-bot]

🤖 beep boop beep 🤖

Here are the logs for the failed build:

Status of 31857: failure

samba

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There was 1 failure:

1) OCA\Files_External\Tests\Storage\SmbTest::testNotifyGetChanges
Actual changes are:
Array
(
    [0] => OC\Files\Notify\Change Object
        (
            [type:OC\Files\Notify\Change:private] => 1
            [path:OC\Files\Notify\Change:private] => newfile.txt
        )

    [1] => OC\Files\Notify\RenameChange Object
        (
            [targetPath:OC\Files\Notify\RenameChange:private] => renamed.txt
            [type:OC\Files\Notify\Change:private] => 4
            [path:OC\Files\Notify\Change:private] => newfile.txt
        )

    [2] => OC\Files\Notify\Change Object
        (
            [type:OC\Files\Notify\Change:private] => 2
            [path:OC\Files\Notify\Change:private] => renamed.txt
        )

)

Failed asserting that an array contains OC\Files\Notify\RenameChange Object &00000000192631a70000000059f7b169 (
    'targetPath' => 'renamed.txt'
    'type' => 4
    'path' => 'newfile.txt'
).

/drone/src/apps/files_external/tests/Storage/SmbTest.php:126

acceptance-app-files

• tests/acceptance/features/app-files.feature:262

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  Scenario: unmarking a file as favorite causes the file list to be sorted again                          # /drone/src/tests/acceptance/features/app-files.feature:262
    Given I am logged in                                                                                  # LoginPageContext::iAmLoggedIn()
    And I create a new folder named "A name alphabetically lower than welcome.txt"                        # FileListContext::iCreateANewFolderNamed()
    And I see that "A name alphabetically lower than welcome.txt" precedes "welcome.txt" in the file list # FileListContext::iSeeThatPrecedesInTheFileList()
    And I close the details view                                                                          # FilesAppContext::iCloseTheDetailsView()
    And I see that the details view is closed                                                             # FilesAppContext::iSeeThatTheDetailsViewIsClosed()
    And I mark "welcome.txt" as favorite                                                                  # FileListContext::iMarkAsFavorite()
    And I see that "welcome.txt" is marked as favorite                                                    # FileListContext::iSeeThatIsMarkedAsFavorite()
    And I see that "welcome.txt" precedes "A name alphabetically lower than welcome.txt" in the file list # FileListContext::iSeeThatPrecedesInTheFileList()
    When I unmark "welcome.txt" as favorite                                                               # FileListContext::iUnmarkAsFavorite()
    Then I see that "welcome.txt" is not marked as favorite                                               # FileListContext::iSeeThatIsNotMarkedAsFavorite()
      Not favorited state icon for file welcome.txt in file list could not be found after 100 seconds (NoSuchElementException)
    And I see that "A name alphabetically lower than welcome.txt" precedes "welcome.txt" in the file list # FileListContext::iSeeThatPrecedesInTheFileList()

[rullzer]

sure