fix: add tomli dependency and fallback for Python 3.10 compatibility

Author: for13to1

pyproject.toml

@@ -24,7 +24,9 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Operating System :: OS Independent",
 ]
-dependencies = []
+dependencies = [
+    "tomli>=2.0.0; python_version < '3.11'",
+]
 
 [project.urls]
 "Homepage" = "https://github.com/for13to1/mistode"