fix: use new syntax

Author: JacobCoffee

salt/haproxy/config/haproxy.cfg.jinja

@@ -130,7 +130,7 @@ frontend main
     {%- if config.get('rate_limit') %}
     # Rate limit config for {{ service }}
     acl is_{{ service }} hdr(host) -i {% for domain in config.domains %}{{ domain }} {% endfor %}
-    http-request deny deny_status 429 if is_{{ service }} { sc0_http_req_rate() gt {{ config.rate_limit }} }
+    http-request deny deny_status 429 if is_{{ service }} { sc_http_req_rate(0) gt {{ config.rate_limit }} }
     {%- endif %}
     {%- endfor %}