fix: resolve CI type annotation issues

src/requirements_to_gherkin/__init__.py

@@ -0,0 +1,7 @@
+"""Requirements to Gherkin converter package."""
+
+from requirements_to_gherkin.parser import RequirementsParser
+from requirements_to_gherkin.generator import GherkinGenerator
+from requirements_to_gherkin.models import Feature, Scenario, Step
+
+__all__ = ["RequirementsParser", "GherkinGenerator", "Feature", "Scenario", "Step"]