Update dependency sinon to v6.3.3

[renovate]

This Pull Request updates devDependency sinon (homepage, source) from v6.2.0 to v6.3.3

Note: This PR was created on a configured schedule ("before 5am on Saturday" in timezone Europe/Stockholm) and will not receive updates outside those times.

Release Notes

v6.3.3

Compare Source

==================

• Upgrade formatio, samsam, nise and referee

---

v6.3.2

Compare Source

==================

• Adds guard for empty properties in deepEqual when a matcher is provided (#​1901)

---

v6.3.1

Compare Source

==================

• Fix use of non-cached reference to forEach

---

v6.3.0

Compare Source

==================

• Allow providing stubs overrides for sinon.createStubInstance (#​1864)
• Bump Lolex to 2.7.4 to include IE fixes for performance.mark

---

---

This PR has been generated by Renovate Bot.