Update dependency @cypress/code-coverage to v3.7.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@cypress/code-coverage	devDependencies	patch	3.7.2 -> 3.7.3

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Release Notes

cypress-io/code-coverage

### [`v3.7.3`](https://togithub.com/cypress-io/code-coverage/releases/v3.7.3) [Compare Source](https://togithub.com/cypress-io/code-coverage/compare/v3.7.2...v3.7.3) ##### Bug Fixes - ignore coverage env variable case ([#​237](https://togithub.com/cypress-io/code-coverage/issues/237)) ([d1cbb1d](https://togithub.com/cypress-io/code-coverage/commit/d1cbb1df981fd12c97204a0409eb45757c70f24e))

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Renovate configuration

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