chore(deps): update dependency sinon to v9

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
sinon (source)	devDependencies	major	8.1.1 -> 9.0.2

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Release Notes

sinonjs/sinon

v9.0.2

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• Bump @​sinonjs/fake-timers (fix error when using Node's util/promisify with setTimeout)
• Upgrade @​sinonjs/commons (fix error when trying to calculate function name from generators)

v9.0.1

Compare Source

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• Fix #​2226: restore props defined on prototype chain by deleting

v9.0.0

Compare Source

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• Ignore errors on thisValue property accesses (#​2216)
• Add firstArg to spy calls and fakes. (#​2150)
• Drop Node 8 support

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[coveralls]

Pull Request Test Coverage Report for Build 953

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 98.684%

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Totals
Change from base Build 901:	0.0%
Covered Lines:	135
Relevant Lines:	136

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💛 - Coveralls