Lint (#251)

## Linting

### Fix linting
- *Category*: Lint
- *JIRA issue*: https://jira.ihme.washington.edu/browse/MIC-XYZ

### Changes and notes
<!-- 
Change description – why, what, anything unexplained by the above.
Include guidance to reviewers if changes are complex.
--> 

### Testing
<!--
Details on how code was verified, any unit tests local for the
repo, regression testing, etc. At a minimum, this should include an
integration test for a framework change. Consider: plots, images,
(small) csv file.
-->

CHANGELOG.rst

@@ -1,3 +1,7 @@
+**2.1.2 - 01/31/25**
+
+  - Linting  
+
 **2.1.1 - 12/16/24**
 
   - Defer defining randomness additional seed to RandomnessManager

src/vivarium_cluster_tools/psimulate/runner.py

@@ -29,7 +29,9 @@
     redis_dbs,
 )
 from vivarium_cluster_tools.psimulate import results as psim_results
-from vivarium_cluster_tools.psimulate import worker
+from vivarium_cluster_tools.psimulate import (
+    worker,
+)
 from vivarium_cluster_tools.psimulate.paths import OutputPaths
 from vivarium_cluster_tools.psimulate.performance_logger import (
     append_perf_data_to_central_logs,