Fix OOM issue on broker wait-zookeeper-ready initContainer (#568)

Author: got-root

charts/pulsar/templates/broker-statefulset.yaml

@@ -138,7 +138,7 @@ spec:
         args:
           - >-
             {{- include "pulsar.broker.zookeeper.tls.settings" . | nindent 12 }}
-            export BOOKIE_MEM="-Xmx128M";
+            export PULSAR_MEM="-Xmx128M";
             {{- if .Values.pulsar_metadata.configurationStore }}
             until timeout 15 bin/pulsar zookeeper-shell -server {{ template "pulsar.configurationStore.connect" . }} get {{ .Values.configurationStoreMetadataPrefix }}/admin/clusters/{{ template "pulsar.cluster.name" . }}; do
             {{- end }}