[bitnami/mxnet] Add missing namespace metadata (#10143)

Signed-off-by: Miguel Ruiz <miruiz@vmware.com>

bitnami/mxnet/Chart.yaml

@@ -24,4 +24,4 @@ name: mxnet
 sources:
   - https://github.com/bitnami/bitnami-docker-mxnet
   - https://mxnet.apache.org/
-version: 3.0.0
+version: 3.0.1

bitnami/mxnet/templates/pvc.yaml

@@ -7,6 +7,7 @@ metadata:
   {{- else }}
   name: {{ printf "%s-scheduler" (include "common.names.fullname" .) }}
   {{- end }}
+  namespace: {{ include "common.names.namespace" . | quote }}
   labels: {{- include "common.labels.standard" . | nindent 4 }}
     {{- if .Values.commonLabels }}
     {{- include "common.tplvalues.render" ( dict "value" .Values.commonLabels "context" $ ) | nindent 4 }}