update hardcoded python 3.8 paths to 3.11

We don't include python3.8 anywhere anymore.

BUG=b:318532035
TEST=CQ passes

Change-Id: I161132f9bc75d747653267735522bae868276602
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/6253842
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Commit-Queue: Leandro Lovisolo <lovisolo@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Owners-Override: Mike Frysinger <vapier@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
2 files changed