(extracted from #29865)

The dependency on sage.libs.arb was introduced in #30486.
We catch ImportError so that there are no failures in modularized
settings (#29865 - packages sagemath-objects, sagemath-categories).

CC: @kiwifb @dimpase @tobiasdiez

Component: refactoring

Author: Matthias Koeppe

Branch/Commit: 8e57f63

Reviewer: François Bissey

Issue created by migration from https://trac.sagemath.org/ticket/31334