release: pin to operator v0.9.0

The CoCo operator v0.9.0 is released now, pinning to that version
then before our 0.9.0 release.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>

src/cloud-api-adaptor/versions.yaml

@@ -29,7 +29,7 @@ tools:
 git:
   coco-operator:
     url: https://github.com/confidential-containers/operator
-    reference: 23aeb68d289041aafe4d6ecdf4601d9b96b7acbf
+    reference: v0.9.0
   guest-components:
     url: https://github.com/confidential-containers/guest-components
     reference: v0.9.0