fix: apex lsp for 250

[peternhale]

@W-15476622@ Update apex language server to v250

[daphne-sfdc]

• Apex LSP starts properly (“Indexing complete” status in status bar) ✅
• Hover documentation ✅
• Autocompletion ✅
• Go to definition ✅
• Code lens show up for the entire class and each method in Apex test files ✅
• Can run Apex tests using code lens ✅
• Anonymous Apex autocompletion ✅
• No unusual syntax highlighting ✅
• No uncaught errors in Developer: Show Running Extensions ✅
• No problems in Problems tab ✅
• No unusual logs in Output tab for Apex Language Server and Apex in dropdown ✅
• No unusual errors in Developer: Toggle Developer Tools ✅

[diyer]

@daphne-sfdc excellent test cases. Do you think its worth putting this in a test plan doc that can be used during every major release to test lsp upgrade?

[daphne-sfdc]

@daphne-sfdc excellent test cases. Do you think its worth putting this in a test plan doc that can be used during every major release to test lsp upgrade?

I already added them to the Major Release Tasks instructions doc: https://salesforce.quip.com/7FHrABbH1Nn4