Login fails with `req.session.regenerate is not a function`

• [X ] I am not disclosing a vulnerability.
• [ X] I am not just asking a question.
• [ X] I have searched through existing issues.
• [ X] I can reproduce the issue with the latest versions of Parse Server and Parse Dashboard.

Issue Description

Impossible to login on the dashboard after upgrade on 4.1.3.
It was working 4.1.2. No issue after downgrading on 4.1.2

Steps to reproduce

In nodejs server code:
const dashboard = new ParseDashboard(dashboardConfig,{allowInsecureHTTP: true});
app.use('/dash', dashboard);

Fill the login form and submit.

Actual Outcome

TypeError: req.session.regenerate is not a function
at SessionManager.logIn (/home/demo/work/dkb/dkb-backend/node_modules/passport/lib/sessionmanager.js:28:15)
at IncomingMessage.req.login.req.logIn (/home/demo/work/dkb/dkb-backend/node_modules/passport/lib/http/request.js:39:26)
at Strategy.strategy.success (/home/demo/work/dkb/dkb-backend/node_modules/passport/lib/middleware/authenticate.js:256:13)
at verified (/home/demo/work/dkb/dkb-backend/node_modules/passport-local/lib/strategy.js:83:10)
at Strategy._verify (/home/demo/work/dkb/dkb-backend/node_modules/parse-dashboard/Parse-Dashboard/Authentication.js:41:7)
at Strategy.authenticate (/home/demo/work/dkb/dkb-backend/node_modules/passport-local/lib/strategy.js:88:12)
at attempt (/home/demo/work/dkb/dkb-backend/node_modules/passport/lib/middleware/authenticate.js:369:16)
at authenticate (/home/demo/work/dkb/dkb-backend/node_modules/passport/lib/middleware/authenticate.js:370:7)
at Layer.handle [as handle_request] (/home/demo/work/dkb/dkb-backend/node_modules/express/lib/router/layer.js:95:5)
at next (/home/demo/work/dkb/dkb-backend/node_modules/express/lib/router/route.js:144:13)

Dashboard

• Parse Dashboard version: 4.1.3
• Browser (Safari, Chrome, Firefox, Edge, etc.): Chrome, Firefox

Server

• Parse Server version: 5.2.4
• Operating system: Linux
• Local or remote host (AWS, Azure, Google Cloud, Heroku, Digital Ocean, etc): local

Database

• System (MongoDB or Postgres): mongo
• Database version: last on dockerhub
• Local or remote host (MongoDB Atlas, mLab, AWS, Azure, Google Cloud, etc): local container

Reproduce the dashboard login using the ParseDashboard setup in the issue and inspect Parse-Dashboard/Authentication.js alongside the reported Passport stack frames. Compare the 4.1.3 and 4.1.2 behavior, then verify the fix against the login flow; merged pull request #2196 indicates that work has already moved elsewhere.