Release os-traits 2.0.0

...to pick up COMPUTE_IMAGE_TYPE_PLOOP from [1].

Make this a major, rather than feature, bump since this also includes
the patch where we dropped support for py2 [2].

[1] https://review.opendev.org/#/c/696435/
[2] https://review.opendev.org/#/c/690997/

Change-Id: I0ad502079ec858969ae28a4148bdc2c1e9c7e927

deliverables/_independent/os-traits.yaml

@@ -36,5 +36,9 @@ releases:
     projects:
       - repo: openstack/os-traits
         hash: 308fef970233943703dec13970d6022b71c0c0a0
+  - version: 2.0.0
+    projects:
+      - repo: openstack/os-traits
+        hash: c7468b0bad407c7fdb293a49e9c6c9ec16274a96
 repository-settings:
   openstack/os-traits: {}