Bump ks-devops chart version from 0.1.1 to 0.1.2
What this PR dose
Bump ks-devops chart version from 0.1.1 to 0.1.2.
Why we need it
Latest ks-devops-helm-chart has been released, please see:
https://github.com/kubesphere-sigs/ks-devops-helm-chart/releases/tag/ks-devops-0.1.2
/area devops