Bump _images/icons from 02b8371 to 20b98fa

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]>