[mod] network: migrate to curl_cffi

searx/engines/yacy.py

@@ -58,7 +58,7 @@ from json import loads
 from urllib.parse import urlencode
 from dateutil import parser
 
-from httpx import DigestAuth
+from curl_cffi import CurlOpt
 
 from searx.utils import html_to_text
 
@@ -141,7 +141,10 @@ def request(query, params):
     params["url"] = f"{_base_url()}/yacysearch.json?{urlencode(args)}"
 
     if http_digest_auth_user and http_digest_auth_pass:
-        params['auth'] = DigestAuth(http_digest_auth_user, http_digest_auth_pass)
+        params['curl_options'] = {
+            CurlOpt.HTTPAUTH: 2,  # CURLAUTH_DIGEST
+            CurlOpt.USERPWD: f"{http_digest_auth_user}:{http_digest_auth_pass}",
+        }
 
     return params