chore(deps): update dependency polyfill to v9

[thomhurst]

This PR contains the following updates:

Package	Type	Update	Change
Polyfill	nuget	major	8.7.4 -> 9.3.2

---

Release Notes

SimonCropp/Polyfill (Polyfill)

v9.3.2

Compare Source

v9.3.1

Compare Source

v9.3.0

Compare Source

v9.2.0

Compare Source

v9.1.0

Compare Source

v9.0.3

Compare Source

v9.0.2

Compare Source

v8.9.1

Compare Source

v8.9.0

Compare Source

v8.8.1

Compare Source

v8.8.0

Compare Source

---

Configuration

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

🚦 Automerge: Enabled.

♻ 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 has been generated by Renovate Bot.