fix: update wordlist for CONTRIBUTING.md spellcheck

Add missing technical terms to wordlist:
- aredis (async Redis OM module name)
- conftest (pytest configuration file)
- Docstrings/docstrings (Python documentation)
- isort (import sorting tool)
- mypy (static type checker)
- pytest (testing framework)
- Redi (partial word in RediSearch/RedisJSON context)

Author: bsbodden

.github/wordlist.txt

@@ -1,8 +1,11 @@
 APIs
+AMR
 Bader's
 CLI
 Config
 Deserializing
+Docstrings
+EntraID
 FastAPI
 HashModel
 Homebrew
@@ -18,6 +21,7 @@ Pydantic
 Pydantic's
 README
 README.md
+Redi
 RediSearch
 RediSearch
 RedisJSON
@@ -27,20 +31,29 @@ TOC
 ULIDs
 UlidPrimaryKey
 WSL
+aredis
 async
 asyncio
 cls
+conftest
 coroutines
 doctoc
+docstrings
+entraid
 fastapi
+http
 indexable
 io
+isort
 js
 localhost
 md
+metamodel
 migrator
+mypy
 py
 pyenv
+pytest
 redis
 redisearch
 redisjson
@@ -54,9 +67,4 @@ unix
 utf
 validator
 validators
-virtualenv
-http
-AMR
-EntraID
-entraid
-metamodel
+virtualenv