Update dependency cross-env to v7

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cross-env	6.0.3 -> 7.0.3

---

Release Notes

kentcdodds/cross-env (cross-env)

v7.0.3

Compare Source

Bug Fixes

• add maintenance mode notice (fe80c84)

v7.0.2

Compare Source

Reverts

• Revert "fix: signal handling (#​227)" (2a1f44c), closes #​227

v7.0.1

Compare Source

Bug Fixes

• signal handling (#​227) (8a9cf0e)

v7.0.0

Compare Source

Features

• update dependencies (#​223) (4ec6f40)

BREAKING CHANGES

• Drop Node 8 support

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

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

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

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

---

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

---

This MR has been generated by Renovate Bot.