nginxModules.vod: Patch MAX_CLIPS variable

The old limit was only 128 and this breaks some applications like e.g.
Frigate where playlists become bigger than that. According to upstream
you should just change the variable yourself if needed.

See this issue: https://github.com/kaltura/nginx-vod-module/issues/238

pkgs/servers/http/nginx/modules.nix

@@ -986,7 +986,11 @@ let self = {
       owner = "kaltura";
       repo = "nginx-vod-module";
       rev = "1.32";
-      hash = "sha256-uBZtzh+IvBFNU/9oQ3KmX65Eog2CrI5LYN8sKaqjJhE=";
+      hash = "sha256-ZpG0oj60D3o7/7uyE8AybCiOtncVe1Jnjaz22sIFypk=";
+      postFetch = ''
+        substituteInPlace $out/vod/media_set.h \
+          --replace "MAX_CLIPS (128)" "MAX_CLIPS (1024)"
+      '';
     };
 
     inputs = [ ffmpeg fdk_aac openssl libxml2 libiconv ];