defold: rebuild
defold: rebuild

* Add livecheck
* Update Casks/defold.rb
* defold: add explanatory comment

Closes #129877.

Co-authored-by: Sam Ford <0ca8a4bfe5c5e61f6c29b211ba5263c8e9cfe2e1@users.noreply.github.com>
Signed-off-by: Sam Ford <0ca8a4bfe5c5e61f6c29b211ba5263c8e9cfe2e1@users.noreply.github.com>
Signed-off-by: Sean Molenaar <2b250e3fea88cfef248b497ad5fc17f7dc435154@users.noreply.github.com>
Signed-off-by: BrewTestBot <8a898ee6867e4f2028e63d2a6319b2224641c06c@users.noreply.github.com>

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