Remove hardcoded uid and gid, they'll default to the ones from the docker images now

Author: lfrancke

rust/operator-binary/src/druid_controller.rs

@@ -88,7 +88,6 @@ use crate::{
 pub const DRUID_CONTROLLER_NAME: &str = "druidcluster";
 pub const FULL_CONTROLLER_NAME: &str = concatcp!(DRUID_CONTROLLER_NAME, '.', OPERATOR_NAME);
 
-const DRUID_UID: i64 = 1000;
 const DOCKER_IMAGE_BASE_NAME: &str = "druid";
 
 // volume names
@@ -1140,8 +1139,6 @@ fn build_rolegroup_statefulset(
         .service_account_name(service_account.name_any())
         .security_context(
             PodSecurityContextBuilder::new()
-                .run_as_user(DRUID_UID)
-                .run_as_group(0)
                 .fs_group(1000)
                 .build(),
         );