BUG: Sony Ci webhook linking media to Assets is linking incorrect files, e.g. mediainfo XML

[afred]

Describe the bug

• Sony Ci is configured to send a payload to /sony_ci/webhooks/save_sony_ci_id
• Normally we follow a convention of naming files with teh AAPB_ID, e.g. cpb-aacip-123456789.mp4, and the webhook uses that convention to locate the appropriate AMS2 Asset to which to save the Sony Ci ID, which comes in as part of the POST payload to the webhook endpoint.
• However, we've recently initiated a workflow that deposits other non-media files which also contain the AAPB ID

To Reproduce
Steps to reproduce the behavior:

1. Upload a non-media file with an AMS2 AAPB_ID in the filename
2. Go to AMS2 and see that it got linked to the Asset with the same AAPB_ID

Expected behavior
Webhook only does not link AMS2 Assets to Sony Ci files that are not media files.