chore(deps): update dependency should to v13

[renovate]

This Pull Request updates dependency should from v12.0.0 to v13.1.0

Commits

shouldjs/should.js

13.1.0

• c807e9d Release 13.1.0
• 8acfba1 Merge pull request #​154 from citizensas/master
• c12afd0 chore: should has no default export
• 4a846b1 Fill history
• f5c9cc3 Added check for zero argument assertions.
• fe6b136 Added .resolved, .resolvedWith as aliases to .fulfilled, .fulfilledWith

13.0.1

• e90c2cf Release 13.0.1
• 789b8cf Add missing umd bundle

13.0.0

• b9bf8ff Release 13.0.0
• c8a5851 Remove ignored file
• ebfdd19 Travis uses node 8
• 92d0db1 Remove bower, as it seems nobody uses it
• fe1ae5c Fix Unexpected results when using .match with Date objects. shouldjs/should.js#150
• c4924be Fix build and restore old files. In a bit silly way, but it works.
• c946259 Fix tests
• 90bf91e Prettier everything
• 999b122 Add first version of TS typings for should.js
• 06062c5 Reorganize build
• c50e66a Disable package-lock.json because i am controlling all dependencies

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