Make Drools and Kogito build reproducible

[mariofusco]

In order to make our builds complaint with Apache standards they have to be configured as a reproducible according to what described here https://maven.apache.org/guides/mini/guide-reproducible-builds.html

TODO:

1. configure maven-artifact-plugin / project.build.outputTimestamp
2. execute mvn artifact:check-buildplan (to check overall configuration)
3. execute two consecutive builds:
   1. mvn clean install
   2. mvn clean verify artifact:compare (check against previous build)

• drools
• kogito-runtimes - (depends on Upgrade maven plugin versions inside kogito-runtimes #824) (fixed by [incubator-kie-issues#820] Make Drools and Kogito build reproducible incubator-kie-kogito-runtimes#3356)
• kogito-apps - (depends on Upgrade maven plugin versions inside kogito-apps #825) (fixed by [incubator-kie-issues#820] Make Drools and Kogito build reproducible incubator-kie-kogito-apps#1953)
• kogito-examples - (depends on Upgrade maven plugin versions inside kogito-examples #826) (fixed by [incubator-kie-issues#820] Make Drools and Kogito build reproducible incubator-kie-kogito-examples#1854)

[mariofusco]

Implemented in Drools with apache/incubator-kie-drools@829c28a