patch 9.0.2056: no digraph for quadruple prime

Problem:  no digraph for quadruple prime
Solution: add quadruple prime digraph using 4'

closes: #13380

Signed-off-by: Jonathan Wright <quaggy@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Jonathan Wright <quaggy@gmail.com>
diff --git a/src/version.c b/src/version.c
index 4bdf570..7584e45 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2056,
+/**/
     2055,
 /**/
     2054,