[cetic/phpldapadmin] Mount CA certificates for LDAP TLS

[mikeyGlitz]

Is your feature request related to a problem? Please describe.
I'm trying to connect to my LDAP server which is secure with TLS. I'm attempting to sign in with the Admin account cn=admin,dc=example,dc=com. I receive an error from phpldapadmin that phpldapadmin could not connect using TLS.

I'm using a self-signed CA certificate to secure my ldap server

Setting env.PHPLDAPADMIN_LDAP_CLIENT_TLS_REQCERT = allow does not fix this problem. The OpenLDAP server requires a CA certificate in order to verify.

Describe the solution you'd like
I would like an option for the helm chart which I can use to mount the TLS secret onto the deployment template and use the existing env configuration to point phpldapadmin to the ca.crt file.

Mounting Kubernetes Secrets:
https://kubernetes.io/docs/concepts/configuration/secret/