Release sushy-tools 0.20.0

This release includes the following commits:
Changes between 0.19.0 and 58d7f8d
* 58d7f8d Fix for werkzeug 2.2 routing change
* 56e7ace Fix unit tests for Werkzeug 2.2.0
* 95ded9f novadriver, don't use instance.flavor.id
* 413a205 Replace the netboot job with a local-boot one
* c0acc3d aarch64/arm64 libvirt VMs should default to SCSI controller
* d8f0925 Remove support for Python 3.6 and 3.7

Change-Id: I13ec90355e438ef5e7c1fd931567b0fbaa6ed156

deliverables/_independent/sushy-tools.yaml

@@ -95,5 +95,9 @@ releases:
     projects:
       - repo: openstack/sushy-tools
         hash: b0e7380047ba127d2ac57992665af737bb2139d7
+  - version: 0.20.0
+    projects:
+      - repo: openstack/sushy-tools
+        hash: 58d7f8df316c99446e24d89545703e1da1002351
 repository-settings:
   openstack/sushy-tools: {}