Deprecation: #80514 - GraphicalFunctions->tempPath and createTempSubDir()

See forge#80514

Description

The method GraphicalFunctions->createTempSubDir() and the property GraphicalFunctions->tempPath have been marked as deprecated.

Impact

Calling the method above will trigger a deprecation log entry.

Affected Installations

Any instance with custom extensions extending the PHP class GraphicalFunctions.

Migration

Use GeneralUtility::mkdir_deep() with the full path (including the PHP constant PATH_site) directly.