Linter updates for YOLO

.flake8

@@ -1,6 +1,6 @@
 [flake8]
 max-line-length = 160
-exclude = tests/*
+exclude = tests/* uw_detection/src/yolov3
 max-complexity = 10
 # We import modules here to make the API cleaner
 per-file-ignores = **/recognize_speech/__init__.py:F401

.github/workflows/ci.yaml

@@ -7,6 +7,7 @@ jobs:
     env:
       AFTER_SCRIPT: 'cd $target_ws && rosenv && catkin build $(catkin list --depends-on roslint -u) --no-deps --no-status --verbose --make-args roslint'
       CATKIN_LINT: true
+      CATKIN_LINT_ARGS: "--ignore missing_directory --ignore external_link_directory"
       ROS_DISTRO: melodic
       ROS_REPO: main
     strategy: