[stable/zed] fix: add collect.info_schema.processlist  in the percona exporter (#2020)

Depends-On: #2025
diff --git a/roles/percona_xtradb_cluster/vars/main.yml b/roles/percona_xtradb_cluster/vars/main.yml
index 96c7587..17d599f 100644
--- a/roles/percona_xtradb_cluster/vars/main.yml
+++ b/roles/percona_xtradb_cluster/vars/main.yml
@@ -16,6 +16,8 @@
     sidecars:
       - name: exporter
         image: "{{ atmosphere_images['prometheus_mysqld_exporter'] | vexxhost.kubernetes.docker_image('ref') }}"
+        args:
+          - --collect.info_schema.processlist
         env:
           - name: MONITOR_PASSWORD
             valueFrom: