Add tests for python version compatibility (#14430)

crates/ruff_python_formatter/src/options.rs

@@ -475,4 +475,24 @@ impl PythonVersion {
     pub fn supports_pep_701(self) -> bool {
         self >= Self::Py312
     }
+
+    pub fn as_tuple(self) -> (u8, u8) {
+        match self {
+            Self::Py37 => (3, 7),
+            Self::Py38 => (3, 8),
+            Self::Py39 => (3, 9),
+            Self::Py310 => (3, 10),
+            Self::Py311 => (3, 11),
+            Self::Py312 => (3, 12),
+            Self::Py313 => (3, 13),
+        }
+    }
+
+    pub fn latest() -> Self {
+        Self::Py313
+    }
+
+    pub fn minimal_supported() -> Self {
+        Self::Py37
+    }
 }