Add nolabs tokens api endpoint

Change-Id: I4178cde2257defaafedbe3e34ffe1a5918f1ed34
diff --git a/jjb/nolabs/delete-booking.sh b/jjb/nolabs/delete-booking.sh
index 5dcea5b..9a0053e 100644
--- a/jjb/nolabs/delete-booking.sh
+++ b/jjb/nolabs/delete-booking.sh
@@ -19,8 +19,8 @@
 echo "-------------------------------------------------"
 
 # get authentication token
-echo "API Request: http --ignore-stdin POST http://188.212.108.245/api/tokens --auth dummy@dummy.com:dummy | jq -r '.token'"
-NOLABS_TOKEN=$(http --ignore-stdin POST http://188.212.108.245/api/tokens --auth $NOLABS_API_USERNAME:$NOLABS_API_PASSWORD | jq -r '.token')
+echo "API Request: http --ignore-stdin POST $NOLABS_API_TOKENS_ENDPOINT --auth dummy@dummy.com:dummy | jq -r '.token'"
+NOLABS_TOKEN=$(http --ignore-stdin POST $NOLABS_API_TOKENS_ENDPOINT --auth $NOLABS_API_USERNAME:$NOLABS_API_PASSWORD | jq -r '.token')
 
 # update booking status
 echo "API Request: http --ignore-stdin PUT $NOLABS_API_BOOKINGS_ENDPOINT/$BOOKING_ID \"status_text=deploying\" \"Authorization:Bearer DUMMY_TOKEN\""