Do not use auth in the CI (#53)

Allows anyone to run the CI

tests/test_cli_generate.py

@@ -1,5 +1,8 @@
 """Integration tests for the CLI generate command using real implementation."""
 
+import os
+
+import pytest
 from typer.testing import CliRunner
 
 from pocket_tts.data.audio import audio_read
@@ -10,6 +13,9 @@ other_voice = "https://huggingface.co/kyutai/tts-voices/resolve/main/expresso/ex
 
 runner = CliRunner()
 
+IS_CI = os.environ.get("CI") == "true"
+CI_SKIP_REASON = "Voice cloning is not publicly available, skipping in the CI"
+
 
 def test_generate_basic_usage(tmp_path):
     """Test basic generate command with default parameters."""
@@ -32,6 +38,7 @@ def test_generate_basic_usage(tmp_path):
     assert sample_rate == 24000  # Expected sample rate
 
 
+@pytest.mark.skipif(IS_CI, reason=CI_SKIP_REASON)
 def test_generate_with_custom_voice(tmp_path):
     """Test generate command with custom voice prompt."""
     output_file = tmp_path / "custom_voice_test.wav"