chore(deps): bump org.junit:junit-bom from 5.10.2 to 5.10.3 in /demos

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from 5.10.2 to 5.10.3.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.10.2...r5.10.3)

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

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

demos/pom.xml

@@ -22,7 +22,7 @@
 		<demo.module.name/>
 
 		<!-- testing dependencies versions -->
-		<junit5.version>5.10.2</junit5.version>
+		<junit5.version>5.10.3</junit5.version>
 	</properties>
 
 	<modules>