chore(internal): add rich as a dev dependency (#415)

it's often very helpful when writing demo scripts

Author: stainless-app[bot]

pyproject.toml

@@ -58,6 +58,7 @@ dev-dependencies = [
     "nox",
     "dirty-equals>=0.6.0",
     "importlib-metadata>=6.7.0",
+    "rich>=13.7.1",
 
 ]
 

requirements-dev.lock

@@ -44,6 +44,10 @@ idna==3.4
 importlib-metadata==7.0.0
 iniconfig==2.0.0
     # via pytest
+markdown-it-py==3.0.0
+    # via rich
+mdurl==0.1.2
+    # via markdown-it-py
 mypy==1.7.1
 mypy-extensions==1.0.0
     # via mypy
@@ -63,6 +67,8 @@ pydantic==2.7.1
     # via finch-api
 pydantic-core==2.18.2
     # via pydantic
+pygments==2.18.0
+    # via rich
 pyright==1.1.364
 pytest==7.1.1
     # via pytest-asyncio
@@ -72,6 +78,7 @@ python-dateutil==2.8.2
 pytz==2023.3.post1
     # via dirty-equals
 respx==0.20.2
+rich==13.7.1
 ruff==0.1.9
 setuptools==68.2.2
     # via nodeenv