[Docs] Fixed metricbeat redis exported field CPU descriptions (#25846)

* Fixed redis CPU descriptions

These were mixed up.

* Make changes to fields.yml in meta dir

Co-authored-by: dedemorton <[email protected]>

Author: joostdecock

metricbeat/docs/fields.asciidoc

@@ -40799,7 +40799,7 @@ type: scaled_float
 *`redis.info.cpu.used.sys_children`*::
 +
 --
-User CPU consumed by the Redis server.
+System CPU consumed by the background processes.
 
 
 type: scaled_float
@@ -40809,7 +40809,7 @@ type: scaled_float
 *`redis.info.cpu.used.user`*::
 +
 --
-System CPU consumed by the background processes.
+User CPU consumed by the Redis server.
 
 
 type: scaled_float

metricbeat/module/redis/fields.go

@@ -58,11 +58,11 @@
         - name: used.sys_children
           type: scaled_float
           description: >
-            User CPU consumed by the Redis server.
+            System CPU consumed by the background processes.
         - name: used.user
           type: scaled_float
           description: >
-            System CPU consumed by the background processes.
+            User CPU consumed by the Redis server.
         - name: used.user_children
           type: scaled_float
           description: >