chore(deps): update dependency supertest to ^6.3.3 (cookieAuth-staging)

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
supertest	^6.1.5 -> ^6.3.3

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Release Notes

visionmedia/supertest

v6.3.3

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• chore: bump deps 2910f73

v6.3.2

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• docs: added maintainer note e24875d
• docs: fixed links 5b59ddc

v6.3.1

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• fix: bump superagent (closes #​798) 25122e6

v6.3.0

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• fix: lint package.json, added files array 20adbc1
• Merge pull request #​793 from lamweili/feat/http2 22b89b6
• Merge pull request #​795 from lamweili/code-coverage a225e95
• Merge pull request #​794 from lamweili/migrate-cov fa129dc
• test(#​767): 100% code coverage 9c5bd92
• ci: migrated code coverage from coveralls to codecov 46e6feb
• feat: supports http2 da57804
• Merge pull request #​767 from alexandre-abrioux/expect-stacktrace e064b5a
• Merge pull request #​774 from jmccure/update-promise-example-readme ba4b43b
• Merge pull request #​792 from lamweili/refactor/test b8c2e29
• ci: added ci da1e842
• refactor(test): do not hardcode any ports, use ephemeral ports 8847310
• refactor(test): do not have both s and server, renamed to server for consistency c1c4402
• test: 100% test coverage 8bf4c14
• refactor(TestAgent): removed the host param when creating Test object 1c8930d
• feat(TestAgent): decoupled TestAgent and superagent's Agent to support more than ca, key, cert 5e23869
• fix(TestAgent): attach cookies to agent after plugin is used 6d9b9cb
• Update promise example to work with Mocha 5862fe6
• fix: add stacktrace to failed expect function call 3dba4e9
• test: add failing test b24da85

v6.2.4

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• chore: bump deps f411b02
• chore: bump deps 5e54761

v6.2.3

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• chore: bump deps 6329e2d
• Merge pull request #​759 from francescobarbera/master e6d371c
• docs: add an example for complex object in multipart upload 729e818

v6.2.2

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• chore: bump deps 8f4dd1e

v6.2.1

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• chore: bump deps 9a87305

v6.2.0

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• chore: bump deps e741cab
• Merge pull request #​653 from torhovland/patch-1 88dc262
• Merge pull request #​713 from jtomaszewski/patch-1 70a3d00
• Merge pull request #​749 from jimmywarting/misc a70c1a0
• var to const aae4d8e
• add missing comma f17be2a
• use explicit path cdb0ad9
• only use require in the top of the file 19dcd1e
• don't mixup superagent.Response \w fetch.Response 1dc25a1
• user super and arrow fn d2d9616
• move exports to the bottom 17cf193
• more const a0a5d57
• Merge pull request #​748 from jimmywarting/var 1d70492
• destruct assert dc60d5d
• refactor: convert var to const / let 03f0084
• Merge pull request #​747 from jimmywarting/classify afecc3f
• refactor: Convert test to a class d94ffbc
• Update README.md ad699ed
• docs: Add async/await example to README fc269b6
• Add missing require. 3537e4e

v6.1.6

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• Merge pull request #​735 from benjosantony/master 28116f9
• Add on to the mitigation in https://github.com/visionmedia/supertest/pull/728/commits to support empty array response body ed0f68d

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