disable ament_flake8 flake8 via pre-commit

- disable ament_flake8, flake8 via pre-commit reads .flake8 config
- ament_flake8 in ros-tooling didn't read .flake8
- flake8 and black will conflit over single vs double quotes

Signed-off-by: Alex Moriarty <alex.moriarty@picknik.ai>

robotiq_driver/CMakeLists.txt

@@ -86,6 +86,10 @@ if(BUILD_TESTING)
   # the following skips uncrustify
   # ament_uncrustify and ament_clang_format cannot both be satisfied
   set(ament_cmake_uncrustify_FOUND TRUE)
+  # the following skips ament_flake8
+  # ament_flake8 and black fight over double or single quotes
+  # flake8 is run via pre-commit with a .flake8 configuration file
+  set(ament_cmake_flake8_FOUND TRUE)
   ament_lint_auto_find_test_dependencies()
 endif()