[FIX] change >=python3.7

pyproject.toml

@@ -4,13 +4,13 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "abl"
-version = "0.1.6"
+version = "0.1.7"
 authors = [
   { name="LAMDA 2024", email = "abductivelearning@gmail.com" },
 ]
 description = "Abductive Learning (ABL) package"
 readme = "README.md"
-requires-python = ">=3.6.0"
+requires-python = ">=3.7.0"
 license = {text = "MIT LICENSE"}
 keywords = ["machine-learning", "framework", "abductive-learning", "neuro-symbolic"]
 classifiers = [