Merge pull request #85 from stackhpc/openstack-exporter-1.6.0

Update openstack-exporter to wallaby-20220705T132206

Author: priteau

etc/kayobe/kolla/globals.yml

@@ -21,4 +21,4 @@ prometheus_tag: wallaby-20220525T174700
 prometheus_jiralert_tag: wallaby-20220119T122428
 prometheus_libvirt_exporter_tag: wallaby-20220325T122042
 prometheus_msteams_tag: wallaby-20220119T122428
-prometheus_openstack_exporter_tag: wallaby-20220119T122428
+prometheus_openstack_exporter_tag: wallaby-20220705T132206