build(pyproject.toml): add new dev dependencies - for type checking (#9631)

* build(pyproject.toml): add new dev dependencies - for type checking

* build: reformat files to fit black

* ci: reformat to fit black

* ci(test-litellm.yml): make tests run clear

* build(pyproject.toml): add ruff

* fix: fix ruff checks

* build(mypy/): fix mypy linting errors

* fix(hashicorp_secret_manager.py): fix passing cert for tls auth

* build(mypy/): resolve all mypy errors

* test: update test

* fix: fix black formatting

* build(pre-commit-config.yaml): use poetry run black

* fix(proxy_server.py): fix linting error

* fix: fix ruff safe representation error

litellm/caching/redis_cluster_cache.py

@@ -5,7 +5,7 @@ Key differences:
 - RedisClient NEEDs to be re-used across requests, adds 3000ms latency if it's re-created
 """
 
-from typing import TYPE_CHECKING, Any, List, Optional
+from typing import TYPE_CHECKING, Any, List, Optional, Union
 
 from litellm.caching.redis_cache import RedisCache
 
@@ -16,7 +16,7 @@ if TYPE_CHECKING:
 
     pipeline = Pipeline
     async_redis_client = Redis
-    Span = _Span
+    Span = Union[_Span, Any]
 else:
     pipeline = Any
     async_redis_client = Any