fix: use --jobs=2 long form in parallel e2e config

Agent-Logs-Url: https://github.com/cpp-linter/cpp-linter-hooks/sessions/d3b34e23-651a-4719-8b0f-3a2b57ba280e

Co-authored-by: shenxianpeng <3353385+shenxianpeng@users.noreply.github.com>

Author: Copilot

testing/pre-commit-config-parallel.yaml

@@ -3,4 +3,4 @@ repos:
     rev: HEAD
     hooks:
       - id: clang-tidy
-        args: [--checks=.clang-tidy, -j, "2"]
+        args: [--checks=.clang-tidy, --jobs=2]