gdb: bump black version to 24.4.0

Run `pre-commit autoupdate`, this is the outcome.  There is no change in
formatting of Python files.

Change-Id: I977781fa6cc924c398cc3b9d9954dc0fbb95d082

.pre-commit-config.yaml

@@ -2,7 +2,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 24.3.0
+    rev: 24.4.0
     hooks:
       - id: black
         types_or: [file]