Update pddl dependency

Author: morxa

poetry.lock

@@ -8,7 +8,7 @@ readme = "README.md"
 
 [tool.poetry.dependencies]
 python = "^3.12"
-pddl = { git = "https://github.com/morxa/pddl", rev = 'dd3498a1268b56bc88cc3254156795f859080c56' }
+pddl = { git = "https://github.com/morxa/pddl", rev = '545ad504bd200f488ffedf2953188c43a6e756b5' }
 dlplan = { git = "https://github.com/morxa/dlplan", rev = '961400e4cd493e0dfeb023b419d2b41f0c0600b5' }
 clingo = "*"
 pygraphviz = "*"