Bump to v1.12.0 (zalando#2639)

* bump tp v1.12.0
* code-generator and apiextensions-apiserver still on to 0.25.9 to allow code-generation on GH
* bump go in github action and mini fix in UI
* update UI Dockerfile

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Co-authored-by: Ida Novindasari <idanovinda@gmail.com>

bump tp v1.11.0 (zalando#2580)

bump to v1.10.1 (zalando#2410)

* bump to v1.10.1

bump go to 1.19.8 everywhere (zalando#2300)

bump to v1.9.0 (zalando#2177)

* bump to v1.9.0
* some minor UI config updates
* bump UI package.json to 1.9.0, too

bump to v1.8.2 (zalando#1932)

* bump to v1.8.2
* update opconfig docs around pod environment secret
* fix z-index of UI tooltip

bump to v1.8.1 (zalando#1884)

* bump to v1.8.1
* quote users in REVOKE stmt

bump to v1.8.0 (zalando#1852)

* bump to v1.8.0
* fix helm instructions for ui
* update UI version package.json
* update ui chart

bump operator to v1.7.1 (zalando#1670)

* bump operator to v1.7.1
* update UI image in manifest example

bump operator to v1.7.0 (zalando#1599)