BUGFIX: Fix Error Notifications

These errors need to be wrapped in a delay call in order to actually
work, otherwise we run into this error: https://www.reddit.com/r/neovim/comments/qz4wy6/how_can_i_do_this/

lua/gitlab/job.lua

@@ -19,15 +19,20 @@ M.run_job   = function(endpoint, method, body, callback)
         if callback ~= nil then
           callback(data)
         else
+          vim.defer_fn(function()
             vim.notify(data.message, vim.log.levels.DEBUG)
+          end, 0)
         end
       else
+        vim.defer_fn(function()
           vim.notify("Could not parse command output!", vim.log.levels.ERROR)
+        end, 0)
       end
     end,
     on_stderr = function(_, output)
+      vim.defer_fn(function()
         vim.notify("Could not run command!", vim.log.levels.ERROR)
-      error(output)
+      end, 0)
     end
   }):start()
 end