Stricter default for podSecurityContext

Had to patch this in to conform with our own policies but seems like a good default to have

Author: glindstedt

operations/phlare/helm/phlare/values.yaml

@@ -42,6 +42,8 @@ phlare:
 
   podSecurityContext:
     fsGroup: 10001
+    runAsUser: 10001
+    runAsNonRoot: true
 
   securityContext:
     {}