Bump to v1.12.0 (#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

---------

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

.github/ISSUE_TEMPLATE/postgres-operator-issue-template.md

@@ -9,7 +9,7 @@ assignees: ''
 
 Please, answer some short questions which should help us to understand your problem / question better?
 
-- **Which image of the operator are you using?** e.g. ghcr.io/zalando/postgres-operator:v1.11.0
+- **Which image of the operator are you using?** e.g. ghcr.io/zalando/postgres-operator:v1.12.0
 - **Where do you run it - cloud or metal? Kubernetes or OpenShift?** [AWS K8s | GCP ... | Bare Metal K8s]
 - **Are you running Postgres Operator in production?** [yes | no]
 - **Type of issue?** [Bug report, question, feature request, etc.]

.github/workflows/publish_ghcr_image.yaml

@@ -23,7 +23,7 @@ jobs:
 
       - uses: actions/setup-go@v2
         with:
-          go-version: "^1.21.7"
+          go-version: "^1.22.3"
 
       - name: Run unit tests
         run: make deps mocks test

.github/workflows/run_e2e.yaml

@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v1
     - uses: actions/setup-go@v2
       with:
-          go-version: "^1.21.7"
+          go-version: "^1.22.3"
     - name: Make dependencies
       run: make deps mocks
     - name: Code generation

.github/workflows/run_tests.yaml

@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-go@v2
       with:
-          go-version: "^1.21.7"
+          go-version: "^1.22.3"
     - name: Make dependencies
       run: make deps mocks
     - name: Compile