fix: set max version for scheduler

[motorina0]

Scheduler no longer maintained.

cc: @bitkarrot

[bitkarrot]

OK No problem. I acknowledge the extension has not been maintained. Too busy here. If someone else wants to, they can or if there is demand to rework it later in the year its possible. Please do let me know. thanks.

[motorina0]

OK No problem. I acknowledge the extension has not been maintained. Too busy here. If someone else wants to, they can or if there is demand to rework it later in the year its possible. Please do let me know. thanks.

Note:

• the ext is not removed, it just has a max limit
• we will remove the max limit once the ext is again compatible