[pre-commit.ci] pre-commit autoupdate (#388)

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

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.2 → v0.8.1](astral-sh/ruff-pre-commit@v0.7.2...v0.8.1)

* fix: formatting in benchmark files

---------

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

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -9,7 +9,7 @@ repos:
     -   id: trailing-whitespace
     -   id: check-merge-conflict
 -   repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.7.2
+    rev: v0.8.1
     hooks:
     -   id: ruff
         args: [--fix]

benchmark/scripts/benchmark_ortools.py

@@ -15,8 +15,8 @@ def model(n, solver):
     y = {}
     for i in range(n):
         for j in range(n):
-            x[i, j] = solver.NumVar(lb=None, ub=None, name="x_%d_%d" % (i, j))
-            y[i, j] = solver.NumVar(lb=None, ub=None, name="y_%d_%d" % (i, j))
+            x[i, j] = solver.NumVar(lb=None, ub=None, name=f"x_{i}_{j}")
+            y[i, j] = solver.NumVar(lb=None, ub=None, name=f"y_{i}_{j}")
 
     # Create constraints
     for i in range(n):
@@ -44,7 +44,7 @@ def knapsack_model(n, solver):
     weight = rng.integers(1, 100, size=n)
     value = rng.integers(1, 100, size=n)
 
-    x = {i: solver.BoolVar("x_%d" % i) for i in range(n)}
+    x = {i: solver.BoolVar(f"x_{i}") for i in range(n)}
     # Create constraints
     solver.Add(solver.Sum([weight[i] * x[i] for i in range(n)]) <= 200)