request help: how can i fetch the ssl certificate that stored in vault like apisix when i use apisix-ingress-controller

[ssignik]

Issue description

I am already hold some ssl certificates and want to store ssl cerficate safely.
I find apisix can fetch the ssl certificate stored in the vault(not need vaults issue function just store) (https://api7.ai/blog/apisix-integrates-with-vault).
That resloves my problem, now i want use apisix-ingress-controller, but the secret resources need the ssl certificate stored in the virtual machine without encryption, it`s unsafe.
So can i fetch the ssl certificate that stored in vault like apisix with apisix-ingress-controller?

Environment

• your apisix-ingress-controller version (output of apisix-ingress-controller version --long):3.9.0
• your Kubernetes cluster version (output of kubectl version):v1.29.3
• if you run apisix-ingress-controller in Bare-metal environment, also show your OS version (uname -a):