Snapshot release 2022-11-15

Mostly for bug fixes, some of which are annoying.
The snapshot period will be slowing down if there are no interesting changes or big bug fixes.

New features:

• Document links. textDocument/documentLink

  Valid relative paths, URLs and flake references now report
  as links. For VSCode, it's shown as underlined text, and a
  hand-shaped cursor is shown when moving over them.
  Ctrl-Click would open the target file or URL.

• Store Attr source information in types.

  It is not quite useful for now, and is only be used by the
  "completion kind" during completion.
  We'll find a way to support goto-definition for it in the future.

Fixes:

• Fixed type inference for if conditions.
• Fixed errors from client exit monitor.
• Fixed a deadlock that occurs when changing text rapidly.