Update to Protovalidate v0.13.0 (#310)

Author: smaye81

gradle.properties

@@ -1,5 +1,5 @@
 # Version of buf.build/bufbuild/protovalidate to use.
-protovalidate.version = v1.0.0-rc.2
+protovalidate.version = v0.13.0
 
 # Arguments to the protovalidate-conformance CLI
 protovalidate.conformance.args = --strict_message --strict_error --expected_failures=expected-failures.yaml