fix: add missing feature flag in ci

Author: backwardspy

.github/workflows/lint.yaml

@@ -2,7 +2,7 @@ name: Lint
 on:
   push:
     paths:
-      - '**.py'
+      - "**.py"
 jobs:
   lint:
     strategy:
@@ -19,7 +19,7 @@ jobs:
         with:
           poetry-version: "1.2.2"
       - run: poetry config virtualenvs.create false
-      - run: poetry install -E pygments
+      - run: poetry install -E pygments -E rich
       - run: isort --check .
       - run: black --check .
       - run: pylint catppuccin

catppuccin/extras/rich_ctp.py

@@ -1,3 +1,6 @@
+"""
+Rich themes for all Catppuccin flavours.
+"""
 from rich.theme import Theme
 
 from catppuccin.flavour import Flavour