Standardize license headers in TOML/YAML files (#13491)

Refactor code for speed and clarity

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

.github/workflows/merge-main-into-prs.yml

@@ -1,4 +1,5 @@
-# Ultralytics YOLO 🚀, AGPL-3.0 license
+# Ultralytics 🚀 AGPL-3.0 License - https://ultralytics.com/license
+
 # Automatically merges repository 'main' branch into all open PRs to keep them up-to-date
 # Action runs on updates to main branch so when one PR merges to main all others update