update headers for opencl

SteveBronder · SteveBronder · commit 21a1c95d1462 · 2023-07-24T10:19:52.000-04:00
diff --git a/stan/math/opencl/opencl_context.hpp b/stan/math/opencl/opencl_context.hpp
@@ -18,7 +18,7 @@
 #include <string>
 #include <iostream>
 #include <fstream>
-#include <map>
+#include <unordered_map>
 #include <vector>
 #include <cmath>
 #include <cerrno>
