feat: add Caleb Derven to CSS

Author: phette23

_data/community-support.yml

@@ -8,6 +8,16 @@ allen:
     onsite: true
     online: false
 
+derven:
+    name: Caleb Derven
+    last: Derven
+    pronouns: he/him/his
+    img: /assets/img/conduct/caleb-derven.jpg
+    img_alt: "Caleb Derven (he/him) is the Head of Digital Scholarship & Library Systems at the University of Limerick."
+    slack_handle: Caleb Derven
+    onsite: true
+    online: true
+
 fox:
     name: Bobbi Fox
     last: Fox