Handle itemDefaults in CompletionList according to spec (#41187)

Closes https://github.com/zed-extensions/java/issues/101

Previously Zed did not handle resolving CompletionList with itemDefaults
correctly according to the
[LSP-Spec](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#:~:text=/**%0A%09%20*%20The%20edit%20text,%3F%3A%20string%3B).
When a `CompletionList` is provided by the server, that includes ranges
as `itemDefaults`, the field to use for the snippet to insert as
`newText` is in the `textEditText` field, with a fallback to `label` if
that does not exist (`insertText` is ignored).

Release Notes:

- Fixed Java language severs' completion defaults handling on Zed's side

Cargo.toml

@@ -534,7 +534,7 @@ libc = "0.2"
 libsqlite3-sys = { version = "0.30.1", features = ["bundled"] }
 linkify = "0.10.0"
 log = { version = "0.4.16", features = ["kv_unstable_serde", "serde"] }
-lsp-types = { git = "https://github.com/zed-industries/lsp-types", rev = "0874f8742fe55b4dc94308c1e3c0069710d8eeaf" }
+lsp-types = { git = "https://github.com/zed-industries/lsp-types", rev = "b71ab4eeb27d9758be8092020a46fe33fbca4e33" }
 mach2 = "0.5"
 markup5ever_rcdom = "0.3.0"
 metal = "0.29"