maint: update deps

deps/curl/docs/libcurl/opts/CURLOPT_HTTP09_ALLOWED.md

@@ -0,0 +1,64 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_HTTP09_ALLOWED
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_HTTP_VERSION (3)
+  - CURLOPT_SSLVERSION (3)
+---
+
+# NAME
+
+CURLOPT_HTTP09_ALLOWED - allow HTTP/0.9 response
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long allowed);
+~~~
+
+# DESCRIPTION
+
+Pass the long argument *allowed* set to 1L to allow HTTP/0.9 responses.
+
+An HTTP/0.9 response is a server response entirely without headers and only a
+body. You can connect to lots of random TCP services and still get a response
+that curl might consider to be HTTP/0.9!
+
+# DEFAULT
+
+curl allowed HTTP/0.9 responses by default before 7.66.0
+
+Since 7.66.0, libcurl requires this option set to 1L to allow HTTP/0.9
+responses.
+
+# PROTOCOLS
+
+HTTP
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode ret;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
+    curl_easy_setopt(curl, CURLOPT_HTTP09_ALLOWED, 1L);
+    ret = curl_easy_perform(curl);
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Option added in 7.64.0, present along with HTTP.
+
+# RETURN VALUE
+
+Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.