v0.9.1

What's Changed

This is a maintenance update that includes an important bug fix: in some situations, the CEL environment does not correctly get populated with its dependencies; specifically, when an expression refers to a submessage whose dependency is in a non-public import, it will not be added to the CEL environment.

• Update to protovalidate 0.12.0 by @smaye81 in #301
• Implement workaround for cel-java import issue by @jchadwick-buf in #302

Full Changelog: 0.9.0...v0.9.1