chore(novu): Release version `2.2.0`

[rifont]

What changed? Why was the change needed?

• Release novu@2.2.0
  • Add npx novu dev --headless flag to support conditional browser opening (https://github.com/novuhq/novu/pull/7021)

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commit: c2c3363

[rifont]

Closing as version is bumped in https://github.com/novuhq/novu/pull/7073