BTag warns missing BIcon

[kikuomax]

Overview of the problem

Buefy version: buefy-next (67ecf3a)
Vuejs version: 3.3.4
OS/Browser: macOS/@vue/test-utils

Description

<b-tag> warns missing <b-icon>.

[Vue warn]: Failed to resolve component: b-icon

Steps to reproduce

I encountered this while working on unit tests of Tag:

• Port Unit Tests. #1

In the packages/buefy-next folder, run the unit tests on Tag:

npx jest src/components/tag/Tag.spec.js

I have not confirmed on a browser but I think we could reproduce this if we specifically import Tag without installing Buefy as a plugin.

Expected behavior

No warning is shown.

Actual behavior

The warning is shown.

[kikuomax]

I updated the description to include the command for reproduction.