gguf-hash : update clib.json to point to original xxhash repo (#8491)

* Update clib.json to point to Cyan4973 original xxhash

Convinced Cyan4973 to add clib.json directly to his repo, so can now point the clib package directly to him now. Previously pointed to my fork with the clib.json package metadata

https://github.com/Cyan4973/xxHash/pull/954

* gguf-hash: readme update to point to Cyan4973 xxHash repo [no ci]

examples/gguf-hash/README.md

@@ -201,6 +201,6 @@ Verification results for test.gguf.manifest - Success
 
 These micro c libraries dependencies was installed via the [clib c package manager](https://github.com/clibs)
 
-- https://github.com/mofosyne/xxHash (From: https://github.com/Cyan4973/xxHash)
+- https://github.com/Cyan4973/xxHash
 - https://github.com/clibs/sha1/
 - https://github.com/jb55/sha256.c

examples/gguf-hash/deps/xxhash/clib.json

@@ -1,7 +1,7 @@
 {
   "name": "xxhash",
   "version": "0.8.2",
-  "repo": "mofosyne/xxhash",
+  "repo": "Cyan4973/xxhash",
   "description": "Extremely fast non-cryptographic hash algorithm",
   "keywords": ["xxhash", "hashing"],
   "license": "BSD-2-Clause",