Prepare jupyterlab-lsp 5.3.0 and jupyter-lsp 2.3.1 (#1177)

* Prepare jupyterlab-lsp 5.3.0 and jupyter-lsp 2.3.1

* Lint

Prepare `jupyter-lsp` 2.3.0 release (#1153)

* Prepare `jupyter-lsp` 2.3.0 release

* Try using `PythonModuleSpec` for pyright, lint

* Try to split installation

* Uninstall jupyter_lsp before reinstalling

* Add '-y' flag to pip uninstall command

* Revert unnecessary changes

Prepare 5.2.0 release and jupyter-lsp 2.2.6 (#1147)

* Prepare 5.2.0 release

* Lint

Prepare 5.1.1 release (#1122)

* Prepare 5.1.1 release

* Lint

Fix environment variables leaking into the parent environment (#1078)

* Add a test against issue #1076

* Test against a single server, not all of them

* Fix the issue by using `os._Environ.copy()`

* Add changelog entry

* Bump version to 2.2.5

Merge pull request #1069 from krassowski/fix-websocket-and-spurious-n…

…otebook-json

Fix websocket handler and remove spurious config for old notebook server

Merge pull request #1062 from krassowski/more-prep-for-5.1

Minor version/debug statement cleanup in preparation for v5.1

Prepare 5.0.3 release (#1046)

Merge pull request from GHSA-4qhp-652w-c22x

* Add auth decorators, add traversal guard

* Fix mocks resolving most test failures;

`test_listeners` still fails not sure how to fix it

* Address review comments

* add tests for (un)authn'd REST and WebSocket handlers

* Restore old import for 1.x compat, remove a log

* handle advertised jupyter-server 1.x version

* Lint (isort any mypy)

* More tests for paths

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Co-authored-by: Nicholas Bollweg <nick.bollweg@gmail.com>