test ci cache 2

Author: csviri

CONTRIBUTING.md

@@ -3,3 +3,4 @@ To release the project to maven central, create a new release in github.
 Set both tag and name ing a format: `v[major].[minor].[patch]`, sample: `v1.2.23`. 
 And follow classic semver guidlinces. Note that the version is in the pom files is 
 calculated based on tag not by release name in the release workflow.
+