[tests-only] [full-ci] removing the setresponse in given/then step in webdav context (#7403)

* refactoring the given steps in the webdav context

* refactored remaining given/when/then steps

* return file id

* trim trailing from the folder path

* add missing when step and make other minor corrections

* set responseXml and correct status code check

* correct the naming of steps and helper functions

tests/acceptance/features/bootstrap/FeatureContext.php

@@ -3189,7 +3189,7 @@ class FeatureContext extends BehatVariablesContext {
 	 */
 	public function deleteAllResourceCreatedByAdmin(): void {
 		foreach ($this->adminResources as $resource) {
-			$this->userDeletesFile("admin", $resource);
+			$this->deleteFile("admin", $resource);
 		}
 	}