[BE] Chore: Fix typo (#3493)

`croups` -> `groups`

Signed-off-by: Yarden Shoham <hrsi88@gmail.com>

kafka-ui-contract/src/main/resources/swagger/kafka-ui-api.yaml

@@ -775,7 +775,7 @@ paths:
     get:
       tags:
         - Consumer Groups
-      summary: Get consumer croups with paging support
+      summary: Get consumer groups with paging support
       operationId: getConsumerGroupsPage
       parameters:
         - name: clusterName