version bump to 0.4.6

[ttngu207]

This pull request makes a couple of small but important maintenance updates to the package. The version number is incremented and the minimum required version of a key dependency is updated.

• Versioning:

  • Bumped the package version from 0.4.5 to 0.4.6 in element_array_ephys/version.py

• Dependency requirements:

  • Updated the minimum required datajoint version from 0.13.0 to 0.14.6 in setup.py