Move Ranged into ruff_text_size (#6919)

## Summary

The motivation here is that this enables us to implement `Ranged` in
crates that don't depend on `ruff_python_ast`.

Largely a mechanical refactor with a lot of regex, Clippy help, and
manual fixups.

## Test Plan

`cargo test`

crates/ruff_python_semantic/src/reference.rs

@@ -1,10 +1,10 @@
-use bitflags::bitflags;
-use ruff_text_size::TextRange;
 use std::ops::Deref;
 
+use bitflags::bitflags;
+
 use ruff_index::{newtype_index, IndexSlice, IndexVec};
-use ruff_python_ast::Ranged;
 use ruff_source_file::Locator;
+use ruff_text_size::{Ranged, TextRange};
 
 use crate::context::ExecutionContext;
 use crate::scope::ScopeId;