chore: update clang-format and clang-tidy versions (#152)

- Updated versions automatically from PyPI

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

Author: github-actions[bot]

cpp_linter_hooks/versions.py

@@ -92,4 +92,5 @@
     "20.1.0",
     "21.1.0",
     "21.1.1",
+    "21.1.6",
 ]