Bump org.junit.jupiter:junit-jupiter from 5.11.4 to 5.12.0

Bumps [org.junit.jupiter:junit-jupiter](https://github.com/junit-team/junit5) from 5.11.4 to 5.12.0.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.11.4...r5.12.0)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -49,7 +49,7 @@
         <orgjson.version>20250107</orgjson.version>
 
         <!-- Interne versjoner -->
-        <junit.version>5.11.4</junit.version>
+        <junit.version>5.12.0</junit.version>
         <oauth2-oidc-sdk.version>11.22.2</oauth2-oidc-sdk.version>
         <wiremock.version>3.12.0</wiremock.version>
         <netty.version>4.1.118.Final</netty.version>