Updated Scintilla to add GetTargetTextRaw (closes #17426).

include/wx/stc/stc.h

@@ -5020,6 +5020,9 @@ public:
     // Retrieve the selected text.
     wxCharBuffer GetSelectedTextRaw();
 
+    // Retrieve the target text.
+    wxCharBuffer GetTargetTextRaw();
+
     // Retrieve a range of text.
     wxCharBuffer GetTextRangeRaw(int startPos, int endPos);