Announce to all plugin creators to start v6 migration

We should announce to all the Dynamic Plugins owners that we are planning to update the react-route from v5 to v6 and that we already started with the process. Also we need to explain to them whats our migration plan and timeline:

1. Make console compatible with both versions of react-router, by introduce `react-router-dom-v5-compat` package in 4.14 and updating the router components to v6.
2. Replace the `react-router-dom-v5-compat` package by the end of the 4.15

We should give them some grace period (2 releases - end of 4.15). The change on the plugin's side needs to happen as one change.

List of Dynamic Plugin owners

AC:

• Announce to all the Dynamic Plugin owners our migration plan, mainly ford with  team leads and PMs (contact are part of the List of Dynamic Plugin owners doc).
• Establish a communication channel (slack/mail/regular meetings) to stay in sync in case of any questions or concerns.
• Create a follow up 4.15 story for a broader check/followup with the Dynamic Plugin owners.