[jdk26u] Integrated: 8375063: Update Libpng to 1.6.54

[Jayathirth D V]

On Wed, 21 Jan 2026 06:02:50 GMT, Jayathirth D V <jdv at openjdk.org> wrote:

> This is jdk26u backport of https://github.com/openjdk/jdk/pull/29292.
> We are upgrading libpng used for Splashscreen from 1.6.51 to 1.6.54 version.
> Original mainline PR is reviewed by Sergey Bylokhov and Phil Race.

This pull request has now been integrated.

Changeset: f4141531
Author:    Jayathirth D V <jdv at openjdk.org>
URL:       https://git.openjdk.org/jdk26u/commit/f414153137629207bebf2c95b67a27e8f6f5d530
Stats:     1406 lines in 16 files changed: 443 ins; 7 del; 956 mod

8375063: Update Libpng to 1.6.54

Backport-of: a2e749572e03dd394d123b701e163e3837472dd0

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PR: https://git.openjdk.org/jdk26u/pull/21