add Python 'Trove' classifiers to the project (#12)

TODO.md

@@ -11,3 +11,7 @@ These below are from Issues or PRs in the original repository.
 - add an option to the init function to disable logging of cache hits and
   misses. or only display these messages if a certain ENV variable is set/unset?
 - add an option to have a separate logging file for cache hits and misses?
+- remove creating a test Redis from `redis.py`. This should not be done in the
+  production logic, but set up in the test logic.
+- add a `cache_key` parameter to the `cache` decorator to allow for custom
+  cache keys

pyproject.toml

@@ -7,6 +7,20 @@ license = "MIT"
 readme = "README.md"
 packages = [{ include = "fastapi_redis_cache", from = "." }]
 
+classifiers = [
+  "Development Status :: 4 - Beta",
+  "Intended Audience :: Developers",
+  "License :: OSI Approved :: MIT License",
+  "Natural Language :: English",
+  "Operating System :: OS Independent",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3 :: Only",
+  "Topic :: Software Development :: Libraries :: Python Modules",
+]
+
 [tool.poetry.dependencies]
 python = "^3.9"
 pydantic = "^2.6.4"