Update junit5 monorepo to v5.9.0

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.junit:junit-bom (source)	5.8.2 -> 5.9.0
org.junit.jupiter:junit-jupiter (source)	5.8.2 -> 5.9.0

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This MR has been generated by Renovate Bot.

added dependency-update label

mentioned in issue #15 (closed)

assigned to @Martin_Vogel

mentioned in issue #4 (closed)

mentioned in issue #1 (closed)

approved this merge request

merged

mentioned in commit 2e69c596