This is the result of running `npm up` across the board.

The suppressImplicitAnyIndexErrors config is deprecated in Typescript
5.0 and above, and will be removed in Typescript 5.5. For now, we can
still use it by setting "ignoreDeprecations": "5.0", but we'll need to
go through our JS code and switch to individual @ts-ignore lines at
every occurrence of implicit "any" before we can update to TS 5.5.