RFR: 7000: Update third party library used in flightrecorder.flameview [v3]

Tue Dec 22 15:20:53 UTC 2020

On Mon, 21 Dec 2020 13:42:36 GMT, Marcus Hirt <hirt at openjdk.org> wrote:

>> Guru Hb has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   fixed Unit test failure
>
> Marked as reviewed by hirt (Lead).

seems work fine on my side!

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PR: https://git.openjdk.java.net/jmc/pull/186