Add skipTLSWarning config option

[ivanauth]

Summary

Add a new config option skipTLSWarning that allows users to suppress the TLS warning in the Status.Conditions when running SpiceDB without TLS in internal/development environments.

Fixes #180

Changes

• Add skipTLSWarning config key (boolean, defaults to false)
• Add SkipTLSWarning field to SpiceConfig struct
• Update TLS warning logic to check the flag
• Add test case for the new functionality

Usage

apiVersion: authzed.com/v1alpha1
kind: SpiceDBCluster
spec:
  config:
    datastoreEngine: memory
    skipTLSWarning: true  # Suppress TLS warning for internal deployments

Testing

go test ./pkg/config/... -v -run "TestNewConfig/memory_with_skipTLSWarning"