Disable `use_enum_values`

[cmcginley-splunk]

• Auto-converting enums to their string values in Pydantic leads to typing weirdness and some inconsistent logical checks
• We should:
  • removes all instances of use_enum_values from the codebase
  • identifies wherever the .value is used and removes them, if applicable
  • Runs validate /build --enrichments / test to make sure everything "seems to work" AND produces the same output files.