chore(deps): update dependency babel-eslint to v9

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
babel-eslint	8.2.3 -> 9.0.0

---

Release Notes

babel/babel-eslint (babel-eslint)

v9.0.0

Compare Source

v9.0.0

We've released v7: https://twitter.com/left_pad/status/1034204330352500736, so this just updates babel-eslint to use those versions internally. That in itself doesn't break anything but:

• Babel now supports the new decorators proposal by default, so we need to switch between the new and the old proposal. This is a breaking change.

To enable the legacy decorators proposal users should add a specific parser option:

{
  parserOptions: {
    ecmaFeatures: {
      legacyDecorators: true
    }
  }
}

• Babel removed the support for Node 4 , so I propagated that here.

v8.2.6

Compare Source

v8.2.5

Compare Source

v8.2.4

Compare Source

---

Configuration

📅 Schedule: Branch creation - "after 4pm on friday,before 9am on monday,every weekend" in timezone Europe/Paris, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.