harbor: drop trivy package dep (included in apk)

[xnox]

harbor-scanner-trivy binary execs trivy binary, thus dependency was added on the apk level. Thus one doesn't need to specify trivy dependency anymore.

Related:

• https://github.com/wolfi-dev/os/pull/21243

Signed-off-by: Dimitri John Ledkov dimitri.ledkov@chainguard.dev