Bump _images/icons from 02b8371 to 20b98fa (#3516)

Bumps [_images/icons](https://github.com/elementary/icons) from `02b8371` to `20b98fa`.
- [Release notes](https://github.com/elementary/icons/releases)
- [Commits](elementary/icons@02b8371...20b98fa)

---
updated-dependencies:
- dependency-name: _images/icons
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>