Bump org.junit:junit-bom from 5.10.0 to 6.0.3 in /ams-javalin-shopping

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit-framework) from 5.10.0 to 6.0.3.
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](junit-team/junit-framework@r5.10.0...r6.0.3)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

ams-javalin-shopping/pom.xml

@@ -22,7 +22,7 @@
         <opencsv.version>5.8</opencsv.version>
         <slf4j.version>2.0.7</slf4j.version>
         <logback.version>1.4.14</logback.version>
-        <junit.version>5.10.0</junit.version>
+        <junit.version>6.0.3</junit.version>
         <httpclient.version>4.5.14</httpclient.version>
     </properties>