Changes HashMap to use aHash instead, giving a performance boost. (#9391)

# Description

see https://github.com/nushell/nushell/issues/9390
using `ahash` instead of the default hasher. this will not affect
compile time as we where already building `ahash`.


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crates/nu_plugin_query/Cargo.toml

@@ -25,3 +25,4 @@ gjson = "0.8"
 scraper = { default-features = false, version = "0.16" }
 sxd-document = "0.3"
 sxd-xpath = "0.4"
+ahash = "0.8.3"

crates/nu_plugin_query/src/web_tables.rs

@@ -1,6 +1,6 @@
 use crate::query_web::css;
+use ahash::{HashMap, HashMapExt};
 use scraper::{element_ref::ElementRef, Html, Selector as ScraperSelector};
-use std::collections::HashMap;
 
 pub type Headers = HashMap<String, usize>;