[cli] Add support for vc --cwd <dir> (#7577)

`vc`'s default command is `deploy`, which can lead to ambiguous cli invocations when running `vc dir-or-command` like:

```
$  vc list
Vercel CLI 23.1.2
Error! The supplied argument "list" is ambiguous.
If you wish to deploy the subdirectory "list", first run "cd list".
```

when run in a directory that contains a subdirectory "list". This conflict will happen with any current and future commands, like `vc build`.

In order to make sure the CLI can be invoked either way, this PR deprecates the default behavior. Going forward, a user would see the following.

**Conflicting Command, Run Command**

```bash
$ vc list
# warning: Did you mean to deploy the subdirectory "list"? Use `vc --cwd list` instead.
# ... runs the `list` command
```

**Conflicting Command, Deploy Directory**

```bash
$ vc --cwd list
# ... deploy as normal
```

---

Card: https://linear.app/vercel/issue/BUI-33/prevent-ambiguous-vc-command-oror-dir

packages/cli/src/util/projects/get-project-by-id-or-name.ts

@@ -9,7 +9,7 @@ export default async function getProjectByNameOrId(
 ) {
   try {
     const project = await client.fetch<Project>(
-      `/projects/${encodeURIComponent(projectNameOrId)}`,
+      `/v8/projects/${encodeURIComponent(projectNameOrId)}`,
       { accountId }
     );
     return project;