Fixed boolean validation to handle bool kind

[V-R-Dighe]

Fixes Or Enhances

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• Tests exist or have been written that cover this particular change.

@go-playground/validator-maintainers

[coveralls]

Coverage increased (+0.005%) to 74.182% when pulling a193dc2 on V-R-Dighe:develop into 9e2ea40 on go-playground:master.

[V-R-Dighe]

Hello Team,
cc: @deankarn

Please review and let me know if anything more is needed from my end.

Thanks,
Vaibhav Dighe

[deankarn]

Thanks for the reminder @V-R-Dighe sorry i just have very little time to maintain this project ATM.

will try to slip it in tomorrow.