Updating Dockerfile with 3.2.1

Latest release

Updating to NXRM 3.2.0-01

NEXUS-11119 - Nexus 3.1 and required layout changes (sonatype#50)

Updating to Nexus 3.0.2-02

Updated to Nexus 3.0.1-01 and JRE 102 (sonatype#17)