Use tox-cover on non-constraints projects

Change I914f660dbcd9680f872ed99f380bda049e1e0d2c switched a lot of
jobs to non-constraints equivalents, but missed doing the same for
coverage jobs on those projects. Switch from openstack-tox-cover to
plain tox-cover for any projects where the -no-constraints prefixed
project-templates are used.

Change-Id: I464a2289845db60c883acf1895f033f04a1973a3

zuul.d/projects.yaml

@@ -440,7 +440,7 @@
       - release-openstack-sphinx-docs-infra
     post:
       jobs:
-        - openstack-tox-cover
+        - tox-cover
 
 - project:
     name: openstack-infra/bugdaystats
@@ -721,10 +721,10 @@
       - publish-to-pypi
     check:
       jobs:
-        - openstack-tox-cover
+        - tox-cover
     post:
       jobs:
-        - openstack-tox-cover
+        - tox-cover
 
 - project:
     name: openstack-infra/groups
@@ -830,12 +830,12 @@
       - publish-to-pypi
     check:
       jobs:
-        - openstack-tox-cover
+        - tox-cover
         - build-openstack-sphinx-docs:
             voting: false
     post:
       jobs:
-        - openstack-tox-cover
+        - tox-cover
 
 - project:
     name: openstack-infra/js-afs-blob-store
@@ -2016,7 +2016,7 @@
       - publish-to-pypi
     post:
       jobs:
-        - openstack-tox-cover
+        - tox-cover
     release:
       jobs:
         - publish-openstack-sphinx-docs-infra:
@@ -2119,7 +2119,7 @@
       - publish-openstack-sphinx-docs-infra
     post:
       jobs:
-        - openstack-tox-cover
+        - tox-cover
     pre-release:
       jobs:
         - publish-openstack-sphinx-docs-infra: