Bump ruff line-length to 120 and reformat

Rejoins lines that only wrapped because they exceeded the old 88-char
limit; ruff check and the full test suite (725 passed) are unaffected.

scripts/steps_to_parquet_parallel.py

@@ -49,9 +49,7 @@ def latest_schema_tag(processed_gen_dir: Path) -> str | None:
     return best_tag
 
 
-def resolve_destination(
-    root_file: Path, dataset_root: Path, schema_override: str | None
-) -> Path:
+def resolve_destination(root_file: Path, dataset_root: Path, schema_override: str | None) -> Path:
     """Map raw/<kind>/<gen>/<detector>/<file>.root (relative to *dataset_root*)
     to processed/<kind>/<gen>/<schema>/<detector>/<file>.parquet.
 
@@ -66,12 +64,7 @@ def resolve_destination(
         raise DestinationError(f"{root_file} is not under dataset root {dataset_root}")
 
     parts = rel.parts
-    if (
-        len(parts) != 5
-        or parts[0] != "raw"
-        or not GEN_RE.match(parts[2])
-        or not parts[4].endswith(".root")
-    ):
+    if len(parts) != 5 or parts[0] != "raw" or not GEN_RE.match(parts[2]) or not parts[4].endswith(".root"):
         raise DestinationError(
             f"{root_file} does not match raw/<kind>/<gen>/<detector>/<file>.root "
             f"under {dataset_root} (got relative path: {rel})"
@@ -216,13 +209,7 @@ def run_parallel_job(
             print(f"  {root_file}", file=sys.stderr)
         raise SystemExit(1)
 
-    total_orphaned = sum(
-        int(m.group(1))
-        for _, _, stdout, _ in results
-        for m in _ORPHAN_RE.finditer(stdout)
-    )
+    total_orphaned = sum(int(m.group(1)) for _, _, stdout, _ in results for m in _ORPHAN_RE.finditer(stdout))
     if total_orphaned:
-        print(
-            f"\n{total_orphaned} orphaned child track(s) dropped across {len(results)} file(s)."
-        )
+        print(f"\n{total_orphaned} orphaned child track(s) dropped across {len(results)} file(s).")
     print(f"\nAll {len(results)} conversion(s) completed.")