Relax switch-exhaustiveness-check lint rule

[mcmire]

Explanation

The default behavior for this rule enforces that a switch statement handle all possible values that the given variable could be, including type unions. This rule seems to be acting differently in different environments, especially CI, preventing developers from merging PRs. We could disable this rule entirely, but let's try relaxing it a bit to see if that improves the situation.

References

Changelog

(N/A; developer-only change)

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've highlighted breaking changes using the "BREAKING" category above as appropriate
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes