Update to pygls 2.0

[Copilot]

Upgrades pygls from 1.3.1 to 2.0.1, which includes breaking API changes in import paths and method naming.

Dependencies

• pygls: 1.3.1 → 2.0.1
• lsprotocol: 2023.0.1 → 2025.0.0 (transitive dependency)

API Migration

Import path change:

# Before
from pygls import server, uris, workspace

# After  
from pygls import uris, workspace
from pygls.lsp import server

Method renames (7 call sites):

• publish_diagnostics() → text_document_publish_diagnostics()
• get_document() → get_text_document()

Type annotations (9 locations):

• workspace.Document → workspace.TextDocument

All changes maintain Python 3.9-3.14 compatibility.

Original prompt

let update the buid to test python 3.13 and 3.14 try to fix #479

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