Bump libvirt exporter

Bumps libvirt exporter source from v1.6.0 to v2.2.0. This fixes some
metrics that were lost when the exporter was changed from the old
"tinkoff" source to "inovex".

See also Icc8a3651d601ab45d448c9d252ca6155219d21cf

Closes-Bug: #2120639

Change-Id: Ib738325603173157b4c482f9de6d5d9cea0b758a
Signed-off-by: Alex Welsh <alex@stackhpc.com>

kolla/common/sources.py

@@ -318,11 +318,11 @@ SOURCES = {
                      'elasticsearch_exporter'
                      '-${version}.linux-${debian_arch}.tar.gz')},
     'prometheus-libvirt-exporter': {
-        'version': '1.6.0',
+        'version': '2.2.0',
         'type': 'url',
         'sha256': {
-            'amd64': '57f1e71ac5bd87f18a40b9089e9fb513dec44ced58328b3065879b279f967596',  # noqa: E501
-            'arm64': '8f474fbb515caf19fda92c839eece761738138c7c676d12d10aa0b8c29b3ef9d'},  # noqa: E501
+            'amd64': '37e26779be1ebaef2e76d7304a3d3ecfbdc232a5c57645ee0f97b13f014bd842',  # noqa: E501
+            'arm64': '94ac011349d60d70c14985df2942d02ecac87c0b7c7a468133394eb1800a22b0'},  # noqa: E501
         'location': ('https://github.com/'
                      'inovex/prometheus-libvirt-exporter/'
                      'releases/download/v${version}/'

releasenotes/notes/bug-2120639-74c180bd812ddcf7.yaml

@@ -0,0 +1,10 @@
+---
+fixes:
+  - |
+    Fixed missing metrics in Prometheus libvirt exporter.
+
+    The Prometheus libvirt exporter has been bumped from ``v1.6.0`` to
+    ``v2.2.0``. This restores some metrics that were lost when the exporter
+    source was changed in a previous release.
+
+    `LP#2120639 <https://launchpad.net/bugs/2120639>`__.