Error use_openjdk17 is undefined

[vjrj]

After #848 we still get:

TASK [java : Show java version] ************************************************
fatal: [ala-install-test-3]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'use_openjdk17' is undefined. 'use_openjdk17' is undefined\n\nThe error appears to be in '/data-additional/jenkins/ala-install-test/ala-install/ansible/roles/java/tasks/main.yml': line 4, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: \"Show java version\"\n  ^ here\n"}

PLAY RECAP *********************************************************************
ala-install-test-3         : ok=14   changed=0    unreachable=0    failed=1    skipped=16   rescued=0    ignored=0   

cc @yasima-csiro

[vjrj]

It fails only in playbooks without the "common" role, so I prefer to add the var to our inventories that to modify the playbooks.

[vjrj]

This still fails for some users.