Change logs for gnuplot source package in Nile V2.0

gnuplot (6.0.0+dfsg1-ok1) nile; urgency=medium

  * Build for openKylin.

 -- openKylinBot <email address hidden>  Tue, 07 May 2024 15:14:11 +0800

gnuplot (5.4.4+dfsg1-ok1) yangtze; urgency=medium

  * Build for openKylin.

 -- denghao <email address hidden>  Thu, 23 Feb 2023 14:03:26 +0800