Make changeset a bit shorter

Signed-off-by: Francesco Saltori <francescosaltori@gmail.com>

.changeset/honest-planets-sin.md

@@ -2,7 +2,7 @@
 '@backstage/plugin-scaffolder-backend': minor
 ---
 
-Fixed bug in `publish:github` action that didn't permit to add users as collaborators.
+Fixed a bug in `publish:github` action that didn't permit to add users as collaborators.
 This fix required changing the way parameters are passed to the action.
 In order to add a team as collaborator, now you must use the `team` field instead of `username`.
 In order to add a user as collaborator, you must use the `user` field.
@@ -14,7 +14,6 @@ It's still possible to use the field `username` but is deprecated in favor of `t
   name: Publish
   action: publish:github
   input:
-    allowedHosts: ['github.com']
     repoUrl: ...
     collaborators:
       - access: ...