refactor: remove unnecessary f-string (#1318)

It is wasteful to use `f-string` mechanism if there are no expressions
to be extrapolated. It is recommended to use regular strings instead.

---------

Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>

src/quacc/schemas/vasp.py

@@ -98,7 +98,7 @@ def vasp_summarize_run(
             bader_results = _bader_runner(dir_path, structure=struct)
         except Exception:
             bader_results = None
-            logging.warning(f"Bader analysis could not be performed.", exc_info=True)
+            logging.warning("Bader analysis could not be performed.", exc_info=True)
 
         if bader_results:
             vasp_task_doc["bader"] = bader_results[0]
@@ -110,9 +110,7 @@ def vasp_summarize_run(
             chargemol_results = _chargemol_runner(dir_path, structure=struct)
         except Exception as err:
             chargemol_results = None
-            logging.warning(
-                f"Chargemol analysis could not be performed.", exc_info=True
-            )
+            logging.warning("Chargemol analysis could not be performed.", exc_info=True)
 
         if chargemol_results:
             vasp_task_doc["chargemol"] = chargemol_results[0]