configure abac-sever to use public xnat api url

.gitlab-ci.yml

@@ -128,6 +128,7 @@ image: debian:bullseye-slim
 
             echo \$\{KEYCLOAK_BASE_URL\} | sudo tee "$WORK_DIR/.env.d/XNAT_OPENID_USER_AUTH_BASE_URL" > /dev/null
             echo \$\{KEYCLOAK_BASE_URL\} | sudo tee "$WORK_DIR/.env.d/XNAT_OPENID_ACCESS_TOKEN_BASE_URL" > /dev/null
+            echo \$\{XNAT_API_URL\} | sudo tee "$WORK_DIR/.env.d/ABAC_SERVER_XNAT_API_URL" > /dev/null
 
             # Use public keytray for CPABE server (for proper e2e testing)