Fix tests for single precision

[pguyot]

Enable build with -DAVM_USE_32BIT_FLOAT=ON in CI to avoid regression

These changes are made under both the "Apache 2.0" and the "GNU Lesser General Public License 2.1 or later" license terms (dual license).

SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later