[6.1] - Upgrade dns-java version to 3.6.1

[lashinijay]

Purpose

$subject

[CLAassistant]

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12 out of 13 committers have signed the CLA.

:white_check_mark: Sachin-Mamoru
:white_check_mark: bhagyasakalanka
:white_check_mark: Yoshani
:white_check_mark: madurangasiriwardena
:white_check_mark: lashinijay
:white_check_mark: piraveena
:white_check_mark: dhaura
:white_check_mark: chamathns
:white_check_mark: ZiyamSanthosh
:white_check_mark: AnjanaSamindraPerera
:white_check_mark: ImalshaG
:white_check_mark: ThaminduR
:x: ashensw
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