Sorted Containers Stubs

Community-maintained Python type stubs for the `sortedcontainers` library, which provides `dict`, `set`, and `list` data structures that automatically maintain the order of their elements by value. These stubs enable type checkers (like Mypy or Pyright) to enforce API details, including specific requirements for keys/values and special constructor return types, making `sortedcontainers` easier to use in type-checked codebases. The major and minor versions of `sortedcontainers-stubs` are designed to align with the corresponding major and minor versions of `sortedcontainers` itself. Current version is 2.4.3.