[fix] static.build: upgrade min. node version to 18.17

For sharp [1] dependency / this commit was cherry picked from PR #3157

[1] https://www.npmjs.com/package/sharp

searx/engines/duckduckgo.py

@@ -8,7 +8,7 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 import re
-from urllib.parse import urlencode, quote_plus
+from urllib.parse import quote_plus
 import json
 import babel
 import lxml.html
@@ -397,14 +397,10 @@ def response(resp) -> EngineResults:
         and "Your user agent:" not in zero_click
         and "URL Decoded:" not in zero_click
     ):
-        current_query = resp.search_params["data"].get("q")
         results.add(
             results.types.Answer(
                 answer=zero_click,
-                url="https://duckduckgo.com/?"
-                + urlencode(
-                    {"q": current_query},
-                ),
+                url=extract_text(eval_xpath(doc, '//div[@id="zero_click_abstract"]/a/@href')),
             )
         )
 

utils/lib_sxng_node.sh

@@ -4,7 +4,7 @@
 declare _Blue
 declare _creset
 
-export NODE_MINIMUM_VERSION="16.13.0"
+export NODE_MINIMUM_VERSION="18.17.0"
 
 node.help(){
     cat <<EOF