chore(main): release 1.6.0 (#37)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.5.0"
+  ".": "1.6.0"
 }

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.6.0](https://github.com/flipt-io/flipt-grpc-go/compare/v1.5.0...v1.6.0) (2023-05-23)
+
+
+### Features
+
+* updates to protobuf definitions for flipt main ([#36](https://github.com/flipt-io/flipt-grpc-go/issues/36)) ([e8e938d](https://github.com/flipt-io/flipt-grpc-go/commit/e8e938d71711a2b6e01bd37d7d8c9575d176d835))
+
 ## [1.5.0](https://github.com/flipt-io/flipt-grpc-go/compare/v1.4.0...v1.5.0) (2023-04-12)