[maven-release-plugin] prepare release assertj-core-3.13.2
[maven-release-plugin] prepare release assertj-core-3.13.2

hazendaz/assertj-core,xasx/assertj-core,xasx/assertj-core,assertj/assertj-core,joel-costigliola/assertj-core,joel-costigliola/assertj-core,hazendaz/assertj-core,assertj/assertj-core