With 120M you get OOMKilled even on brokers with modest metrics volumes

This reverts commit 66255af.

Author: solsson

prometheus/50-kafka-jmx-exporter-patch.yml

@@ -35,9 +35,9 @@ spec:
         resources:
           requests:
             cpu: 0m
-            memory: 60Mi
+            memory: 100Mi
           limits:
-            memory: 120Mi
+            memory: 150Mi
         volumeMounts:
         - name: jmx-config
           mountPath: /etc/jmx-kafka