maelstrom: fix build with gcc14

- add patch with `#include <time.h>` fixing:
`error: implicit declaration of function 'time'`

pkgs/by-name/ma/maelstrom/add-maelstrom-netd-include-time.diff

···
+diff --git a/Maelstrom-netd.c b/Maelstrom-netd.c
+index 3e6e942..41ed9a5 100644
+--- a/Maelstrom-netd.c
++++ b/Maelstrom-netd.c
+@@ -13,6 +13,7 @@
+ #include <arpa/inet.h>
+ #include <netdb.h>
+ #include <unistd.h>
++#include <time.h>
+
+ /* We wait in a loop for players to connect and tell us how many people
+    are playing.  Then, once all players have connected, then we broadcast

pkgs/by-name/ma/maelstrom/package.nix

···
     ./fix-compilation.patch
     # removes register keyword
     ./c++17-fixes.diff
+    # fix build with gcc14
+    ./add-maelstrom-netd-include-time.diff
   ];
 
   buildInputs = [