Fix deprecation warning for pkg_resources dependency by changing to packaging (#13643)

* Add `packaging` dependency

* Change to use `packaging` dependency

* Auto-format by https://ultralytics.com/actions

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Co-authored-by: UltralyticsAssistant <web@ultralytics.com>

pyproject.toml

@@ -78,6 +78,7 @@ dependencies = [
     "thop>=0.1.1", # FLOPs computation
     "pandas>=1.1.4",
     "seaborn>=0.11.0", # plotting
+    "packaging", # general utilities
     "ultralytics>=8.2.64"
 ]