perf: Replace internal SHA256 hashing with xxhash for 4-6x performance improvement (#676)

* perf(internal): Use FastHash for internal hashing
docs: Add xxhash performance improvement to changelog entry
feat(hash): Add fast non-cryptographic hash function

Signed-off-by: Jason Cameron <git@jasoncameron.dev>

* test(hash): add xxhash benchmarks and collision tests

Signed-off-by: Jason Cameron <git@jasoncameron.dev>

* Update metadata

check-spelling run (pull_request) for json/hash

Signed-off-by: check-spelling-bot <check-spelling-bot@users.noreply.github.com>
on-behalf-of: @check-spelling <check-spelling-bot@check-spelling.dev>

---------

Signed-off-by: Jason Cameron <git@jasoncameron.dev>
Signed-off-by: check-spelling-bot <check-spelling-bot@users.noreply.github.com>

.github/actions/spelling/expect.txt

@@ -36,6 +36,7 @@ celchecker
 CELPHASE
 cerr
 certresolver
+cespare
 CGNAT
 cgr
 chainguard
@@ -186,7 +187,6 @@ OCOB
 ogtags
 omgili
 omgilibot
-onionservice
 openai
 openrc
 pag
@@ -214,6 +214,7 @@ qualys
 qwant
 qwantbot
 rac
+rawler
 rcvar
 redir
 redirectscheme
@@ -264,7 +265,6 @@ thoth
 thothmock
 Tik
 Timpibot
-torproject
 traefik
 uberspace
 unixhttpd