Update junit.version for security vulnerability discovery by GitHub Dependabot.
Update junit.version for security vulnerability discovery by GitHub Dependabot.

IHTSDO/OTF-Mapping-Service,IHTSDO/OTF-Mapping-Service,IHTSDO/OTF-Mapping-Service,IHTSDO/OTF-Mapping-Service,IHTSDO/OTF-Mapping-Service,IHTSDO/OTF-Mapping-Service