Use newer JDT libraries to avoid annoying "error" warnings

[company-jcup]

Situation

Our build had some errors outputs from Gradle at at mercedes-benz/sechub#1658.
The reason was the usage of spotless which relies on JDT parts for automated eclipse formatting, which have a bug inside: eclipse-platform/eclipse.platform#180

Following output was shown multiple times:

Errors occurred while build effective model from /home/runner/.gradle/caches/modules-2/files-2.1/org.eclipse.platform/org.eclipse.core.expressions/3.8.200/eb159f34083b0135459745f934a6ad5eb61b61c/org.eclipse.core.expressions-3.8.200.pom:
	'modelVersion' must be one of [4.0.0] but is '4.0'. in org.eclipse.platform:org.eclipse.core.expressions:3.8.200

It's not really breaking the build but just an anoying list of "errors", which are none.

• summary of problem
  • Spotless uses older eclipse core libraries which had this bug inside
  • The bug is fixed in newer eclipse library versions version, see
    Gradle cannot build effective model because of failure in pom.xml eclipse-platform/eclipse.platform#180 (comment)
• gradle version: 7.x, 8.x (does not really matter)
• spotless version: 6.2.0 and earlier
• Any OS

Proposal

• Solution should be to use eclipse core libraries version >= 3.9.0
  (please look at Gradle cannot build effective model because of failure in pom.xml eclipse-platform/eclipse.platform#180 (comment) for details)

[jochenberger]

See also #1772