image versions reference for next release

[gsunner]

What this PR does / why we need it:
Update reference for next release

Does this PR introduce a user-facing change?:

NONE

[seldondev]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[seldondev]

Tue Oct 20 13:59:26 UTC 2020
The logs for [lint] [2] will show after the pipeline context has finished.
https://github.com/SeldonIO/seldon-core/blob/gh-pages/jenkins-x/logs/SeldonIO/seldon-core/PR-2560/2.log

impatient try
jx get build logs SeldonIO/seldon-core/PR-2560 --build=2

[seldondev]

Tue Oct 20 13:59:34 UTC 2020
The logs for [pr-build] [1] will show after the pipeline context has finished.
https://github.com/SeldonIO/seldon-core/blob/gh-pages/jenkins-x/logs/SeldonIO/seldon-core/PR-2560/1.log

impatient try
jx get build logs SeldonIO/seldon-core/PR-2560 --build=1