Update changelogs for v0.3

ChangeLog

 cppdiodon-0.3
 ------------------------------------------------------------------------
 - Add rsvd and revd functions in python wrapper
+- Add regression testing on plafrim
 - Update documentation
 - Tested on Ubuntu 24.04
 

tools/ci/pages/plot_benchmarks.gp

@@ -20,5 +20,5 @@ set style line i linecolor rgb hsv2rgb(0.083*(i-1), 1, 1)
 
 plot filename using 9 ls 1, \
      filename using 10 ls 2, \
-     filename using 11 ls 4, \
+     filename using 11 ls 5, \
      filename using 13:xticlabels(3) ls 7

tools/distrib/debian/ChangeLog

@@ -4,5 +4,6 @@ links given by gitlab as they are missing the submodules.
 
 Changes:
 - Add rsvd and revd functions in python wrapper
+- Add regression testing on plafrim
 - Update documentation
 - Tested on Ubuntu 24.04

tools/distrib/debian/changelog

 cppdiodon (0.3-1) unstable; urgency=medium
 
   * Add rsvd and revd functions in python wrapper
+  * Add regression testing on plafrim
   * Update documentation
   * Tested on Ubuntu 24.04