Adds Reunification Day, on July 17, to the list of holidays (#20531)

To the list of holidays, adds the Day of Reunification, commemorating
the end of the second bloodiest civil war in all of human history and
honoring the millions who gave their lives to save the free world and
once again deliver mankind from its worst enemy.

---------

Signed-off-by: Tag103 <Tag1031@protonmail.com>
Signed-off-by: Tag103 <194812614+Tag103@users.noreply.github.com>
Co-authored-by: Tag103 <Tag1031@protonmail.com>

code/game/gamemodes/events/holidays/holidays.dm

@@ -97,6 +97,7 @@ var/global/Holiday = null
 					if(prob(50))				Holiday = "DPRA Liberation Day"
 				if(7)							Holiday = "Dominian Founding Day"
 				if(16)							Holiday = "Lunarian Apollo Day"
+				if(17)							Holiday = "Solarian Reunification Day"
 				if(29)							Holiday = "Dominian Victory Day"
 
 

html/changelogs/tag103-risingsun.yml

@@ -0,0 +1,6 @@
+author: Tag103
+
+delete-after: True
+
+changes:
+  - rscadd: "Added Reunification Day, celebrated on July 17, to the holiday system."