Update swift/looker/rtl/oauthSession.swift
Update swift/looker/rtl/oauthSession.swift

Co-Authored-By: Robert Miller <64b64a51786336772bca0ed57f04b1a9aadb9916@looker.com>
looker-open-source/sdk-codegen,looker-open-source/sdk-codegen,looker-open-source/sdk-codegen,looker-open-source/sdk-codegen,looker-open-source/sdk-codegen,looker-open-source/sdk-codegen,looker-open-source/sdk-codegen,looker-open-source/sdk-codegen,looker-open-source/sdk-codegen