Upgrade nom-exif to 1.5.2

which should be able to handle more .mov files. See:

- mindeng/nom-exif#8 (comment)
- mindeng/nom-exif@037e54f

Escalate instrumented span levels to above default

so that we don't lose span info on error messages.

Humanize panics

Elevate priority of CreationDate in exiftool