Update version of flyway-maven-plugin (required for newer MariaDB)

[stweil]

The latest version 10.15.2 cannot be used:

Error:  Failed to execute goal org.flywaydb:flyway-maven-plugin:10.15.2:baseline (default) on project kitodo-data-management: Execution default of goal org.flywaydb:flyway-maven-plugin:10.15.2:baseline failed: Unable to load the mojo 'baseline' in the plugin 'org.flywaydb:flyway-maven-plugin:10.15.2' due to an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: org/flywaydb/maven/BaselineMojo has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0

Therefore the update only updates to 9.22.3.

[henning-gerhardt]

I have on my local environment system even a more recent version of MariaDB running but I did not get this error. Maybe this error appear only on your system with a not yet official supported Java version for the application?

[stweil]

Hallo Henning, mein Kommentar besagt lediglich, dass ich die Version "nur" auf 9.22.3 aktualisiere, weil sich ein Update auf die neueste Version 10.15.2 nicht mit dem bisher noch hauptsächlich verwendeten Java 11 verträgt und dort in der CI den oben genannten Fehler anzeigen würde.

[henning-gerhardt]

At least I can still access my local and inhouse used databases. I did not try to migrate any database itself.

[stweil]

I added a commit which fixes issue #6153 by supporting flyway commands from the root. See also the related discussion in #6127.

[henning-gerhardt]

Your additional commit is not bad and I can run the flyway based migration from the root source directory which was not possible before - thanks for that. But I would updating the used flyway version and the changed use of flyway in separate pull requests and the changes here did not fix not the main issue from #6127.

You must adjust the default CI workflow file too as there still a special actions file is in use and this file can hide wrong behavior while CI executing. Don't ask me why the copy command one line before is needed and what is is doing.

[stweil]

the changes here did not fix not the main issue from #6127

I had added the important commit which fixes #6127 only recently. Maybe it was still missing in your test.

Splitting the PR in several independent parts seems like a good idea. I'll do this.

[stweil]

I removed the additional commits now and created new pull requests for them (see #6158 and #6159).

[stweil]

Rebased + fixed merge conflict.