Not as far as I was aware, but Dr Google says I'm wrong.
The article below claims a positive correlation between ADHD and T2 .
https://www.additudemag.com/adhd-type-2-diabetes-health-link/
But it also claims no correlation between T1 and ADHD, and only recognises 3 types of diabetes (T1, T2, GD)
And this one states there is more ADHD in T1s, though it's a correlation rather than causality, and it's possibly just that T1 kids get more doctor's visits so ADHD is more likely to get picked up.
https://www.healthyplace.com/diabetes/mental-health/diabetes-and-adhd-the-correlation-is-high
It seems to me that the connections are still a bit up in the air, maybe because there's so much variation in ADHD diagnosis?