Update usage commit

The previous version still had an issue whereas the user would get:
"The repository '@@com_github_bazelbuild_buildtools' could not be resolved:
Repository '@@com_github_bazelbuild_buildtools' is not defined. and referenced by
'@@bazel_clang_tidy//clang_tidy:clang_tidy'"

README.md

@@ -15,7 +15,7 @@ load(
 
 git_repository(
        name = "bazel_clang_tidy",
-       commit = "69aa13e6d7cf102df70921c66be15d4592251e56",
+       commit = "43bef6852a433f3b2a6b001daecc8bc91d791b92",
        remote = "https://github.com/erenon/bazel_clang_tidy.git",
 )
 ```