Enable Private Key Algorithm Configuration for Cert Manager

[michaeljmarshall]

Motivation

In a recent release, we added support for TLS using ECDSA algorithms. This PR makes it possible to configure the algorithm that Cert Manager uses to create Certificates.

Changes

• Update the dev-values-tls-all-components.yaml example to utilize this new feature.
• Add a configuration option to configure the self signed certs per component using https://cert-manager.io/docs/reference/api-docs/#cert-manager.io/v1.CertificatePrivateKey

This change is completely backwards compatible.