update minimum python version

Author: Rustem

pyproject.toml

@@ -7,7 +7,7 @@ name = "textnano"
 version = "0.1.0"
 description = "A minimal text dataset builder inspired by lazynlp. Perfect for ML students who just want clean text datasets quickly."
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.10"
 license = {text = "MIT"}
 keywords = ["nlp", "machine-learning", "dataset", "text-processing", "web-scraping", "data-cleaning"]
 authors = [