Add release notes for v0.207.0

Author: cheeseandcereal

docs/release_notes/0.207.0.md

@@ -2,6 +2,7 @@
 
 ## 🚀 Features
 
+- Add support for Ubuntu Pro 20.04 based EKS images (#8317)
 - Add support for new force parameter when upgrading cluster version (#8319)
 
 ## 🎯 Improvements
@@ -16,5 +17,5 @@
 
 ## Acknowledgments
 
-The eksctl maintainers would like to sincerely thank @MartinEmrich, @alexandear, @rsumukha and @simonmarty.
+The eksctl maintainers would like to sincerely thank @MartinEmrich, @alexandear, @rsumukha, @simonmarty and @toabctl.