Rename rockylinux9 build directory to rocky9

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

rocky9/rapidjson-generic-string-ref-assignment.patch

@@ -0,0 +1,12 @@
+diff --git a/include/rapidjson/document.h b/include/rapidjson/document.h
+index e3e20df..6d4c1a4 100644
+--- a/include/rapidjson/document.h
++++ b/include/rapidjson/document.h
+@@ -317,6 +317,6 @@ struct GenericStringRef {
+     GenericStringRef(const GenericStringRef& rhs) : s(rhs.s), length(rhs.length) {}
+ 
+-    GenericStringRef& operator=(const GenericStringRef& rhs) { s = rhs.s; length = rhs.length; }
++    GenericStringRef& operator=(const GenericStringRef& rhs) /* = delete */;
+ 
+     //! implicit conversion to plain CharType pointer
+     operator const Ch *() const { return s; }