Merge pull request #3700 from blattms/gcc-11

Include limits header where needed for g++-11

opm/simulators/linalg/GraphColoring.hpp

@@ -26,6 +26,7 @@
 #include <numeric>
 #include <queue>
 #include <cstddef>
+#include <limits>
 
 namespace Opm
 {

opm/simulators/timestepping/AdaptiveSimulatorTimer.hpp

@@ -22,7 +22,7 @@
 #include <cassert>
 #include <iostream>
 #include <vector>
-
+#include <limits>
 #include <algorithm>
 #include <memory>
 #include <numeric>