add casting to string for postgresql query builder

[icewind1991]

Signed-off-by: Robin Appelman robin@icewind.nl

[MorrisJobke]

Code makes sense 👍

[rullzer]

Makes sense

[faily-bot]

🤖 beep boop beep 🤖

Here are the logs for the failed build:

Status of 16997: failure

TESTS=acceptance, TESTS-ACCEPTANCE=apps

• tests/acceptance/features/apps.feature:83

Show full log

 Scenario: Install an app from the app store # /drone/src/github.com/nextcloud/server/tests/acceptance/features/apps.feature:83
Given I act as Jane # ActorContext::iActAs()
And I am logged in as the admin # LoginPageContext::iAmLoggedInAsTheAdmin()
And I open the Apps management # SettingsMenuContext::iOpenTheAppsManagement()
And I open the "Tools" section # AppNavigationContext::iOpenTheSection()
Tools section item in App Navigation could not be found after 100 seconds (NoSuchElementException)
And I click on the "Antivirus for files" app # AppsManagementContext::iClickOnTheApp()
And I see that the app details are shown # AppsManagementContext::iSeeThatTheAppDetailsAreShown()
Then I download and enable the "Antivirus for files" app # AppsManagementContext::iDownloadAndEnableTheApp()
And I see that the "Antivirus for files" app has been enabled # AppsManagementContext::iSeeThatTheAppHasBeenEnabled()

[MorrisJobke]

• tests/acceptance/features/apps.feature:83

"fixed" in #14681