fix pypi classifier tag (#636)

Signed-off-by: yashasvi <[email protected]>

Author: YashasviChaurasia

pyproject.toml

@@ -18,7 +18,7 @@ readme = "README.md"
 requires-python = "~=3.9"
 keywords = ['fms-hf-tuning', 'python', 'tuning']
 classifiers=[
-    "Development Status :: 5 - Stable",
+    "Development Status :: 5 - Production/Stable",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",