[pre-commit.ci] pre-commit autoupdate (#909)

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

updates:
- [github.com/psf/black: 22.10.0 → 22.12.0](psf/black@22.10.0...22.12.0)
- [github.com/charliermarsh/ruff-pre-commit: v0.0.189 → v0.0.207](astral-sh/ruff-pre-commit@v0.0.189...v0.0.207)

* Remove return statement

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: David Brochart <david.brochart@gmail.com>

.pre-commit-config.yaml

@@ -30,12 +30,12 @@ repos:
       - id: mdformat
 
   - repo: https://github.com/psf/black
-    rev: 22.10.0
+    rev: 22.12.0
     hooks:
       - id: black
 
   - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.189
+    rev: v0.0.207
     hooks:
       - id: ruff
         args: ["--fix"]

jupyter_client/multikernelmanager.py

@@ -365,9 +365,8 @@ async def _async_restart_kernel(self, kernel_id: str, now: bool = False) -> None
         if self._using_pending_kernels():
             if not kernel.ready.done():
                 raise RuntimeError("Kernel is in a pending state. Cannot restart.")
-        out = await ensure_async(kernel.restart_kernel(now=now))
+        await ensure_async(kernel.restart_kernel(now=now))
         self.log.info("Kernel restarted: %s" % kernel_id)
-        return out
 
     restart_kernel = run_sync(_async_restart_kernel)