Bump sinon from 4.4.2 to 6.1.3 in /front-end

[dependabot-preview]

Bumps sinon from 4.4.2 to 6.1.3.

Release notes

Sourced from sinon's releases.

Fix #1476

• Fix #1476: spy.withArgs(args...).firstCall is broken

Fix #1274: spy.withArgs(args...).callCount is incorrect

Changelog

Sourced from sinon's changelog.

6.1.3 / 2018-07-07

• Fix issue with matchers and cyclic references (#1709)

6.1.2 / 2018-07-06

• Made callsArg, returnsArg, and throwsArg more strict (#1848)

6.1.1 / 2018-07-06

• Restore useFakeXMLHttpRequest correctly in default sandbox (#1840)

6.1.0 / 2018-07-03

• Syntax sugar for resolvesArg (#1846)

6.0.1 / 2018-06-24

• Add fake behaviors to sandbox (#1815)

6.0.0 / 2018-06-11

• Export Sinon and its functions as an EcmaScript module (#1809 and #1835)
• Document/test call ordering checks

5.1.1 / 2018-06-07

• Remove ES2015 'module' field for 5x branch (fix in seperate branch - see tag)

5.1.0 / 2018-06-06

• Add in matcher (#1811)

5.0.10 / 2018-05-24

• Remove functions shadowing time related sandbox methods (#1802)

5.0.9 / 2018-05-24

• Upgrade @std/esm to esm.

... (truncated)

Commits

• 4c4f839 6.1.3
• 3a70c16 Update History.md and AUTHORS for new release
• 907e552 Add test for #1709
• 014aecf Fix issue when called with matcher
• 38c58de Refactor deepEqual
• cf6a9dc add failing test
• 79aaf8d add samsam.deepEqual to check for object
• e2b7ee6 Update docs/changelog.md and set new release id in docs/_config.yml
• 9df7858 Add release documentation for v6.1.2
• 4f5eed0 6.1.2
• Additional commits viewable in compare view

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