patch 8.1.0283: missing test dump

Problem:    Missing test dump.
Solution:   Add the dump file

src/testdir/dumps/Test_incsearch_substitute_06.dump

@@ -0,0 +1,9 @@
+|f+0&#ffffff0|o@1| |3| @64
+|f+1&&|o@1| +0&&|4| @64
+|f+0&#ffff4012|o@1| +0&#ffffff0|5| @64
+|f|o@1| |6| @64
+|f|o@1| |7| @64
+|f|o@1| |8| @64
+|:|a|b|o|v|e| |b|e|l|o|w| |b|r|o|w|s|e| |b|o|t|r| |c|o|n|f|i|r|m| |k|e@1|p|m|a|r| |k|e@1|p|a|l|t| |k|e@1|p@1|a|t| |k|e@1|p|j|u|m| |f|i|l|t|e
+|r| |x@2| |h|i|d|e| |l|o|c|k|m| |l|e|f|t|a|b|o|v|e| |n|o|a|u| |n|o|s|w|a|p| |r|i|g|h|t|b|e|l| |s|a|n|d|b|o|x| |s|i|l|e|n|t| |s|i|l|e|n|t|!
+| |$|t|a|b| |t|o|p| |u|n|s|i|l| |v|e|r|t| |v|e|r|b|o|s|e| |4|,|5|s|/|f|o|.> @32

src/version.c

@@ -794,6 +794,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    283,
 /**/
     282,
 /**/