Log Message:
py-lsp-server: update to 1.9.0.

## Version 1.9.0 (2023/11/06)

### Issues Closed

* rope_autoimport doesn't initialize after `workspace/didChangeConfiguration` message
* Add code action for implementing auto-import
* Maybe use initializationOptions as additional source of settings

### Pull Requests Merged

* Revert "Rename `_utils` module to `utils`"
* Rename `_utils` module to `utils`
* Raise supported Pylint upper version
* Improve/simplify README Development section
* Add code completions to `rope_autoimport` plugin
* Pass argument `extendIgnore` to flake8
* Ignore notebook names on cell completion for autoimport
* Minor bug fix in Rope autoimport plugin
* Make workspace/didChangeConfig work with notebook documents
* Load `rope_autoimport` cache on `workspace/didChangeConfiguration`
* Support `initializationOptions` to configure the server
* Fix missing signatures for docstrings in Markdown