Bump python-glanceclient from 4.6.0 to 4.7.0

Bumps [python-glanceclient](https://docs.openstack.org/python-glanceclient/latest/) from 4.6.0 to 4.7.0.

---
updated-dependencies:
- dependency-name: python-glanceclient
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -2,7 +2,7 @@ python-openstackclient==7.0.0
 python-designateclient==6.0.1
 python-heatclient==3.5.0
 python-neutronclient==11.3.1
-python-glanceclient==4.6.0
+python-glanceclient==4.7.0
 python-swiftclient==4.6.0
 python-octaviaclient==3.7.0
 munch==4.0.0