media_filepath is not passed to storage proviers

### Description https://github.com/element-hq/synapse/blob/ab277b3e3ff6002536afbe29da268a52cf4cb0b6/synapse/media/media_storage.py#L206-L279 According to this implementation, the `media_filepath` is not passed to the storage providers as described in: https://github.com/element-hq/synapse/blob/ab277b3e3ff6002536afbe29da268a52cf4cb0b6/synapse/media/storage_provider.py#L47-L54 This causes an issue when local storage is disabled, for example with https://github.com/matrix-org/synapse-s3-storage-provider/issues/162 ### Steps to reproduce - list the steps - that reproduce the bug - using hyphens as bullet points ### Homeserver NOT RELEVANT ### Synapse Version ab277b3e3ff6002536afbe29da268a52cf4cb0b6 ### Installation Method Other (please mention below) ### Database NOT RELEVANT ### Workers Single process ### Platform NOT RELEVANT ### Configuration NOT RELEVANT ### Relevant log output ```shell NOT RELEVANT ``` ### Anything else that would be useful to know? I love usefull forms...