chore: advance jazz2-native to ff9ddb7

AssetConverter dropped its table of known levels: an episode now owns
the levels its first level's exits reach, plus trainer (prince) and
psych3 (rescue), and a level is stored under its own name, so share1
becomes share/share1. Levels and tile sets convert on several threads.
Same Source/ and Content/ files, same lookup order.

website/src/data/source-paths.json

@@ -2793,7 +2793,7 @@
   "main.cpp",
   "resource.cpp"
  ],
- "github.com/deathkiller/jazz2-native@27931b28c5bdfff2d82816d5f2bc2d5e45ced909": [
+ "github.com/deathkiller/jazz2-native@ff9ddb7be9c84bdcf71b22d9380da06135edeb62": [
   "CMakeLists.txt",
   "Sources/Jazz2/Compatibility/AssetConverter.cpp",
   "Sources/Jazz2/Compatibility/EventConverter.cpp",