chore(deps): update dependency cpy-cli to v4 for gatsby-legacy-polyfills

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cpy-cli	^3.1.1 -> ^4.1.0

---

Release Notes

sindresorhus/cpy-cli

v4.1.0

Compare Source

• Add --concurrency flag (#​37) 8726315

v4.0.0

Compare Source

Breaking

• Require Node.js 12 (#​31) 7ee777f
• Remove the --parents flag. The copy is now recursive by default. To get flat output, use the --flat flag. Read more

Improvements

• Update cpy to v9 (#​34) 693722f

---

Configuration

📅 Schedule: Branch creation - "before 7am on the first day of the month" in timezone GMT, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, 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, click this checkbox.

---

This PR has been generated by Mend Renovate. View repository job log here.