RFR: JDK-8329004 : Update Libpng to 1.6.43 [v2]

[Harshitha Onkar]

On Thu, 25 Apr 2024 22:46:23 GMT, Phil Race <prr at openjdk.org> wrote:

>> Harshitha Onkar has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   added missing 4 lines of header
>
> src/java.desktop/share/native/libsplashscreen/libpng/png.h line 30:
> 
>> 28:  * License version 2 only, as published by the Free Software Foundation.
>> 29:  * However, the following notice accompanied the original version of this
>> 30:  * file and, per its terms, should not be removed:
> 
> You have lost the above 4 lines from every source file you updated.

Thanks for catching it Phil.
Updated.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18964#discussion_r1580239651