Upgrade browserify preprocessor to 2.1.4

[chrisbreiding]

• Closes require() not working after upgrade #6403

User facing changelog

Update @cypress/browserify-preprocessor to 2.1.4, fixing a regression involving non-top-level requires in tests.

Additional details

How has the user experience changed?

PR Tasks

• N/A Have tests been added/updated?
• Has the original issue been tagged with a release in ZenHub?
• N/A Has a PR for user-facing changes been opened in cypress-documentation?
• N/A Have API changes been updated in the type definitions?
• N/A Have new configuration options been added to the cypress.schema.json?

[cypress-bot]

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User Experience

• The feature/bugfix is self-documenting from within the product.
• The change provides the end user with a way to fix their problem (no dead ends).

Functionality

• The code works and performs its intended function with the correct logic.
• Performance has been factored in (for example, the code cleans up after itself to not cause memory leaks).
• The code guards against edge cases and invalid input and has tests to cover it.

Maintainability

• The code is readable (too many nested 'if's are a bad sign).
• Names used for variables, methods, etc, clearly describe their function.
• The code is easy to understood and there are relevant comments explaining.
• New algorithms are documented in the code with link(s) to external docs (flowcharts, w3c, chrome, firefox).
• There are comments containing link(s) to the addressed issue (in tests and code).

Quality

• The change does not reimplement code.
• There's not a module from the ecosystem that should be used instead.
• There is no redundant or duplicate code.
• There are no irrelevant comments left in the code.
• Tests are testing the code’s intended functionality in the best way possible.

Internal

• The original issue has been tagged with a release in ZenHub.

[cypress]

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Test summary

6863 • 0 • 97 • 0

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Run details

Project	cypress
Status	Passed
Commit	c374497
Started	Feb 11, 2020 5:17 PM
Ended	Feb 11, 2020 5:22 PM
Duration	05:35 💡
OS	Linux Debian - 9.11
Browser	Multiple

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[jennifer-shehane]

Manually ran the previous failing test - is working with this change. 👍