ci/travis: Expect NFC encoding on Travis
ci/travis: Expect NFC encoding on Travis

  When using a macOS release past the one brought by the `xcode11`
  Travis option, the default filesystem uses a NFC UTF-8 normalization
  instead of NFD.
  Our world unit tests should reflect that.

cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop