ref(sentry): Tweak devservices environment env variable

[hubertdeng123]

Making this a string instead of a boolean specifically so that runners can report to Sentry under the ci environment

[IanWoodard]

Besides our local environments, is there anywhere else we used this that we may need to update? Also, as we talked about earlier, we should set the environment to CI in CI.

[hubertdeng123]

Actually, I think a better idea here is to check for the environment variable CI here

[IanWoodard]

This is also a reasonable approach, I did kind of like the ability to specify any environment, but this will likely be better for consistency.