Create the release with Maven.
First of all, check if your github configuration is correct by running
git remote -v. You must be using ssh and not https.
To switch to ssh, type
git remote set-url origin email@example.com:cassandre-tech/cassandre-trading-bot.git.
Start the release with
mvn gitflow:release-start. You will have to choose the release number.
To finish the release and push branches and tags, just run :