fix: cypress hang caused in run mode when test:before:run handler throws

[emilyrohrbough]

• Closes #23039

When in runMode, and a test fails, we will generate the before & after snapshots. We are relying on the reporter's UI to update to indicate when the before snapshot has been taken. Because before:test:run has yet to start the runnable, no logs have been updated and the reporter UI is essentially static and won't be updated, which means the snapshot callback was never executed, which caused the hang.

User facing changelog

Fixed an edge-case bug where Cypress would hang in run-mode if an error was through from a test:before:run event handler. Fixed #23039.

PR Tasks

• [x] Have tests been added/updated?
• [x] Has the original issue (or this PR, if no issue exists) been tagged with a release in ZenHub? (user-facing changes only)
• [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?

[cypress-bot[bot]]

Thanks for taking the time to open a PR!

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.
• Become familiar with the Code Review Checklist for guidelines on coding standards and what needs to be done before a PR can be merged.

[cypress[bot]]

---

Test summary

37846 • 0 • 469 • 0 • 4

---

Run details

Project	cypress
Status	Passed
Commit	32eebd2445
Started	Aug 10, 2022 7:24 PM
Ended	Aug 10, 2022 7:44 PM
Duration	20:11 💡
OS	Linux Debian - 11.3
Browser	Multiple

View run in Cypress Dashboard ➡️

---

Flakiness

	cypress/proxy-logging.cy.ts		2
1	Proxy Logging > request logging > xhr log has response body/status code when xhr response is logged second
2	Proxy Logging > request logging > xhr log has response body/status code when xhr response is logged second
	next.cy.ts		1
1	Working with next-12.1.6 > should detect new spec
	e2e/origin/commands/assertions.cy.ts		1
1	cy.origin assertions > #consoleProps > .should() and .and()

---

This comment has been generated by cypress-bot as a result of this project's GitHub integration settings. You can manage this integration in this project's settings in the Cypress Dashboard