Use Apache Logging Services reusable workflows

[ppkarwasz]

This PR switches Flume to use the reusable workflows from apache/logging-parent.

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[rgoers]

I apologize. I never saw this. I have been in the middle of splitting the repo into multiple projects and then got pulled away. I believe the changes you made should apply though so I can give it a try.

[ppkarwasz]

The changes might be a little bit out of date. This must have been based on logging-parent version 10.0.0 or so.

[ppkarwasz]

That is probably the best I can do for now.

The build is failing, but the failures are logged to the Develocity server. You can analyze it at https://ge.apache.org/scans?search.rootProjectNames=Apache%20Flume%20Project&search.timeZoneId=Europe%2FWarsaw#

[ppkarwasz]

BTW: I bumped the JDK used by the build (but not the JRE requirement) to 11. Many Maven plugins don't work any more on JDK 8.