Merge pull request #6147 from per1234/retire-Ciao

Add "Retired" type to "Ciao"

Author: MatteoPologruto

registry.txt

@@ -96,7 +96,7 @@ https://github.com/vidor-libraries/USBBlaster.git|Arduino|USBBlaster
 
 # .org libraries migrated to arduino-libraries
 https://github.com/arduino-libraries/Braccio.git|Arduino|Braccio
-https://github.com/arduino-libraries/Ciao.git|Arduino|Ciao
+https://github.com/arduino-libraries/Ciao.git|Arduino,Retired|Ciao
 https://github.com/arduino-libraries/UnoWiFi-Developer-Edition-Lib.git|Arduino,Retired|Arduino Uno WiFi Dev Ed Library
 https://github.com/arduino-org/arduino-library-lora-node-shield.git|Arduino|LoRa Node