translate addon docs to i18n/zh

[wangyikewxgm]

https://kubevela.net/zh/docs/reference/addons/overview https://kubevela.net/zh/docs/reference/addons/velaux https://kubevela.net/zh/docs/reference/addons/cert-manager https://kubevela.net/zh/docs/reference/addons/kubevela-io https://kubevela.net/zh/docs/reference/addons/pyroscope https://kubevela.net/zh/docs/reference/addons/vegeta https://kubevela.net/zh/docs/reference/addons/ocm-gateway-manager-addon https://kubevela.net/zh/docs/reference/addons/ocm-hub-control-plane https://kubevela.net/zh/docs/reference/addons/vela-prism https://kubevela.net/zh/docs/reference/addons/flink-kubernetes-operator

[qunqiang]

I want to translate this issue.

[qunqiang]

All translated pages have been merged, so this issue can be closed.

[wonderflow]

Thanks @qunqiang