feat: chore doesn't need ref

If we detect a chore commit, we don't check for the correct ref/close
footer.

ref: N25B-241

.githooks/check-commit-msg.sh

@@ -86,6 +86,9 @@ if ! [[ "$HEADER" =~ $HEADER_REGEX ]]; then
   error_exit "Invalid header format.\n\nHeader must be in the format: <type>: <short description>\nAllowed types: ${ALLOWED_TYPES[*]}\nExample: feat: add new user authentication feature"
 fi
 
+# Only validate footer if commit type is not chore
+TYPE=$(echo "$HEADER" | cut -d':' -f1)
+if [ "$TYPE" != "chore" ]; then
   # 3. Validate the footer (last line) of the commit message
   FOOTER=$(tail -n 1 "$COMMIT_MSG_FILE")
 
@@ -101,6 +104,7 @@ FOOTER_REGEX="^(ref|close): N25B-[0-9]+$"
   if ! [[ "$FOOTER" =~ $FOOTER_REGEX ]]; then
     error_exit "Invalid footer format.\n\nFooter must be in the format: [ref/close]: <issue identifier>\nExample: ref: N25B-123"
   fi
+fi
 
 # 4. If the message has more than 2 lines, validate the separator
 #    A blank line must exist between the header and the body.