[pre-commit.ci] pre-commit autoupdate (#2751)

* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.9 → v0.11.8](astral-sh/ruff-pre-commit@v0.9.9...v0.11.8)

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tom Pike <[email protected]>

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -4,7 +4,7 @@ ci:
 repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.9.9
+  rev: v0.11.8
   hooks:
     # Run the linter.
     - id: ruff

mesa/agent.py

@@ -185,7 +185,7 @@ def __init__(self, agents: Iterable[Agent], random: Random | None = None):
                 Random()
             )  # FIXME see issue 1981, how to get the central rng from model
         self.random = random
-        self._agents = weakref.WeakKeyDictionary({agent: None for agent in agents})
+        self._agents = weakref.WeakKeyDictionary(dict.fromkeys(agents))
 
     def __len__(self) -> int:
         """Return the number of agents in the AgentSet."""
@@ -264,7 +264,7 @@ def shuffle(self, inplace: bool = False) -> AgentSet:
         self.random.shuffle(weakrefs)
 
         if inplace:
-            self._agents.data = {entry: None for entry in weakrefs}
+            self._agents.data = dict.fromkeys(weakrefs)
             return self
         else:
             return AgentSet(
@@ -303,7 +303,7 @@ def _update(self, agents: Iterable[Agent]):
 
         This is a private method primarily used internally by other methods like select, shuffle, and sort.
         """
-        self._agents = weakref.WeakKeyDictionary({agent: None for agent in agents})
+        self._agents = weakref.WeakKeyDictionary(dict.fromkeys(agents))
         return self
 
     def do(self, method: str | Callable, *args, **kwargs) -> AgentSet: