use intmax macro instead of numeric_limits because fucking windows gcc can't make use of it of course

src/custom_sfml_audio/sampler_callback.cpp

@@ -20,7 +20,7 @@ void copy_sample_at_points(
                 if (next != starting_points.end()) {
                     return *next;
                 } else {
-                    return std::numeric_limits<std::int64_t>::max();
+                    return INT64_MAX;
                 }
             }(it)
         );

src/custom_sfml_audio/sampler_callback.hpp

@@ -35,7 +35,7 @@ void copy_sample_at_points(
                 if (next != starting_points.end()) {
                     return next->first;
                 } else {
-                    return std::numeric_limits<std::int64_t>::max();
+                    return INT64_MAX;
                 }
             }(it)
         );