fix: workspace member role update (#1203)

apiserver/plane/api/views/workspace.py

@@ -445,7 +445,7 @@ def partial_update(self, request, slug, pk):
             requested_workspace_member = WorkspaceMember.objects.get(workspace__slug=slug, member=request.user)
             # Check if role is being updated
             # One cannot update role higher than his own role
-            if "role" in request.data and request.data.get("role", workspace_member.role) > requested_workspace_member.role:
+            if "role" in request.data and int(request.data.get("role", workspace_member.role)) > requested_workspace_member.role:
                 return Response(
                     {
                         "error": "You cannot update a role that is higher than your own role"