build: allow installation with typeguard 4.x

[zanieb]

Description

Bumps upper bound for typeguard from 4.0 to 5.0 allowing installation of typeguard 4.x Bumps the locked version to 4.1.2 Tested locally with typeguard 4.1.5 Allows installation with typeguard 3.x still

Typeguard 4.0 was released back in May and this bound is blocking dependency resolution in other projects e.g. https://github.com/astral-sh/ruff-lsp/issues/299

Code review checklist (for code reviewer to complete)

• [x] Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR)
• [x] Title summarizes what is changing
• [x] Commit messages are meaningful (see this for details)
• [x] Tests have been included and/or updated, as appropriate
• [x] Docstrings have been included and/or updated, as appropriate
• [x] Standalone docs have been updated accordingly

[tombh]

Thank you ✨

[zanieb]

Thank you! Would you mind publishing a release for this too?

[tombh]

Sure! https://pypi.org/project/pygls/1.1.2 ❤️