hubble/server: use MinTLSVersion
hubble/server: use MinTLSVersion

This patch update the Hubble server's TLS configuration to use the
serveroption.MinTLSVersion constant instead of hardcoding
tls.VersionTLS13.

Signed-off-by: Alexandre Perrin <60c6d277a8bd81de7fdde19201bf9c58a3df08f4@kaworu.ch>

michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium