mimir-app release v0.14.0

Changed

• Upgrade chart to version 5.5.0 and mimir 2.14.0.
  • Memcached: Update to Memcached 1.6.31-alpine and memcached-exporter 0.14.4.
  • Ingester: set GOMAXPROCS to help with Go scheduling overhead when running on machines with lots of CPU cores.
  • Add missing container security context to run continuous-test under the restricted security policy.