Fix wxGTK1 build after wxBitmapBundle changes in wxStaticBitmap

This should have been done in 3abec9254f (Take wxBitmapBundle in
wxStaticBitmap::SetBitmap(), 2021-10-21) but was forgotten there.

include/wx/gtk1/statbmp.h

@@ -34,7 +34,7 @@ public:
                  long style = 0,
                  const wxString& name = wxASCII_STR(wxStaticBitmapNameStr));
 
-    virtual void SetBitmapBundle( const wxBitmapBundle& bitmap );
+    virtual void SetBitmap( const wxBitmapBundle& bitmap );
 
     static wxVisualAttributes
     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);