Bump version.

Hecatoncheir · Hecatoncheir · commit 4c0e7dc55172 · 2022-05-24T17:51:24.000+03:00
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: groups_field
 description: Group widgets by some attribute.
 publish_to: "none"
-version: 0.1.5
+version: 0.1.6
 
 environment:
   sdk: ">=2.17.0 <3.0.0"
