Migrate `replay-internal` to use `debug`

[AbhiPrasad]

Description

Need to handle tests as well

[billyvg]

@AbhiPrasad are there any functional changes or is it more or less just a rename?

[AbhiPrasad]

It's a rename with a single functional change. See #16901 for more details.

The functional change is to constrain the API to only log, warn, and error. This is the part of the diff in packages/replay-internal/src/util/logger.ts that needs extra eyes.

debug.log()
debug.warn()
debug.error()