fix: update example lockfiles (#4321)
### Description
Update various lockfiles so that users who copy examples directly don't
face unexpected breakages due to outdated lockfiles.
Fixes #4316 (and I believe #4307)
### Testing Instructions
As part of this PR, I changed the example tests so we run them using the
lockfiles that are checked in. This should help us catch breakages due
to old versions. I believe it will become increasingly important if we
roll out @tknickman's new version of `create-turbo` that allows users to
specify an example to use as a template as the template includes these
lockfiles.
