patch 9.0.0566: Nim files are not recognized

Problem:    Nim files are not recognized.
Solution:   Add patterns for Nim files. (Nbiba Bedis, closes #11205)
diff --git a/src/version.c b/src/version.c
index 386babf..26eada3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    566,
+/**/
     565,
 /**/
     564,