Extend CSP according to the latest docs for manifest version >= 1.13

[onmomo]

According to the latest docs for manifest starting with version 1.13, it seems that the CSPs require an update to extend the apps to Microsoft 365 / Outlook

• https://learn.microsoft.com/en-us/microsoftteams/platform/m365-apps/extend-m365-teams-personal-tab?tabs=manifest-manual#update-the-app-manifest
  

I could provide a PR if this is something that would make sense for this lib?

Current CSP

• https://github.com/wictorwilen/express-msteams-host/blob/master/src/routers/MsTeamsPageRouter.ts#L33