.github/workflows: put back CLI in cross-wasm GitHub action

Since we're keeping the JS support in the CLI (see https://github.com/tailscale/tailscale/pull/5265#issuecomment-1203078243),
make sure it keeps building.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
This commit is contained in:
Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f