Merge "update constraint for openstack-release-test to new release 8.0.0"

Author: Zuul

upper-constraints.txt

@@ -192,7 +192,7 @@ cryptography===44.0.0
 httpcore===1.0.7
 URLObject===2.4.3
 psycopg2-binary===2.9.10
-openstack-release-test===7.0.0
+openstack-release-test===8.0.0
 pycryptodomex===3.21.0
 requests-mock===1.12.1
 os-apply-config===14.0.0