ci, iwyu: Fix warnings in src/kernel and treat them as errors

src/kernel/chainparams.cpp

@@ -21,10 +21,14 @@
 #include <util/strencodings.h>
 
 #include <algorithm>
+#include <array>
 #include <cassert>
 #include <cstdint>
 #include <cstring>
-#include <type_traits>
+#include <iterator>
+#include <map>
+#include <span>
+#include <utility>
 
 using namespace util::hex_literals;