V5 branch (#2491)

* wip

* Worked on phrasing etc for v5 doc changes.

* Removed quite repetition of 'Rather'

* Update v4-to-v5.md

* Update v4-to-v5.md

* Update v4-to-v5.md

* WIP

* WIP

* clean SET command

* some more commands, multi.exec<'typed'>

* "typed" multi

* WIP

* upgrade deps

* wip

* wip

* fix #2469

* wip

* npm update

* wip

* wip

* wip

* wip

* some tests

* tests.yml

* wip

* wip

* merge master into v5

* some more commands

* some more commands

* WIP

* Release client@2.0.0-next.1

---------

Co-authored-by: Simon Prickett <simon@redislabs.com>

packages/client/lib/commands/CLIENT_ID.ts

@@ -1,7 +1,9 @@
-export const IS_READ_ONLY = true;
+import { NumberReply, Command } from '../RESP/types';
 
-export function transformArguments(): Array<string> {
+export default {
+  IS_READ_ONLY: true,
+  transformArguments() {
     return ['CLIENT', 'ID'];
-}
-
-export declare function transformReply(): number;
+  },
+  transformReply: undefined as unknown as () => NumberReply
+} as const satisfies Command;