update curl version to curl-8_12_0

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: Zoey2936

Dockerfile

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:labs
 FROM alpine:3.21.2 AS build
 SHELL ["/bin/ash", "-eo", "pipefail", "-c"]
-ARG CURL_VERSION=curl-8_11_1
+ARG CURL_VERSION=curl-8_12_0
 ARG WS_VERSION=v5.7.6-stable
 ARG NGH3_VERSION=v1.7.0
 ARG NGTCP2_VERSION=v1.10.0