patch 8.2.2830: terminal colors are not updated when 'background' is set

Problem:    Terminal colors are not updated when 'background' is set.
Solution:   Call term_update_colors() for all terminals. (Marcin Szamotulski,
            closes #8171, closes #8150)
diff --git a/src/version.c b/src/version.c
index b256620..63ede84 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2830,
+/**/
     2829,
 /**/
     2828,