brainglobe/cellfinder: Update to comply with `brainreg` v1.0.0

Abstract

<h1>Update to depend on <code>brainreg</code> v1.0.0</h1> <p>Users may wish to uninstall <code>brainreg-napari</code> and <code>brainreg-segment</code> before updating. For details, see <a href="https://brainglobe.info/blog/version1/brainreg_update_live.html">our blog post</a>.</p> <h2>What's Changed</h2> <ul> <li>Update to brainreg v1 compliance by @willGraham01 in https://github.com/brainglobe/cellfinder/pull/255</li> </ul> <p><strong>Full Changelog</strong>: https://github.com/brainglobe/cellfinder/compare/v0.7.1...v0.8.0</p&gt