patch 9.0.0731: clang-tidy configuration files are not recognized

Problem:    clang-tidy configuration files are not recognized.
Solution:   Recognize clang-tidy files as yaml. (closes #11350)
diff --git a/src/version.c b/src/version.c
index 31d9776..b44101e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    731,
+/**/
     730,
 /**/
     729,