Support workspace/executeCommand for actions' data (#26239)

Closes https://github.com/zed-industries/zed/issues/16746
Part of https://github.com/zed-extensions/deno/issues/2

Changes the action-related code so, that

* `lsp::Command` as actions are supported, if server replies with them
* actions with commands are filtered out based on servers'
`executeCommandOptions`
(https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#executeCommandOptions)
— commands that are not listed won't be executed and the corresponding
actions will be hidden in Zed

Release Notes:

- Added support of `workspace/executeCommand` for actions' data

---------

Co-authored-by: Peter Tripp <petertripp@gmail.com>

crates/lsp/src/lsp.rs

@@ -679,6 +679,9 @@ impl LanguageServer {
                         ..Default::default()
                     }),
                     apply_edit: Some(true),
+                    execute_command: Some(ExecuteCommandClientCapabilities {
+                        dynamic_registration: Some(false),
+                    }),
                     ..Default::default()
                 }),
                 text_document: Some(TextDocumentClientCapabilities {