pagure / src.fp.o: Drop fedora-altarch, as it's not used. Add cvsadmin as we want them to have access to everything.

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

roles/distgit/pagure/templates/pagure_shared.cfg

@@ -99,7 +99,7 @@ SSH_COMMAND_NON_REPOSPANNER = ([
 ], {"GL_USER": "%(username)s"})
 
 EXTERNAL_COMMITTER = {
-    'fedora-altarch': {},
+    'cvsadmin': {},
     'provenpackager': {
         'exclude': ['rpms/xulrunner', 'rpms/thunderbird', 'rpms/firefox']
     }