Nothing to worry about...unless...it stays there for many long minutes after you're seated or at rest once again. That could be a sign of positional orthostatic tachycardia (POTS, and yes, it's a thing...), or of an arrhythmia. How is your sleep...going a little short due to all of this intrusion into your normal routine? That could account for a rise in HR for a while.

I was a runner all my adult life until I developed atrial fibrillation. Competitive, too. Nowadays, while my arrhythmia is being controlled, my HR still rises above 100 when I stand to move around. It means you're healthy, properly reactive to demands you place on your body. Personally, I'd worry a lot more about standing, taking steps to the fridge, and finding that my heart rate DOESN'T rise. :-0

Let your surgeon know, but I'll bet they take your BP and pulse before the surgery anyway to ensure you're a good candidate.