The new release of qca (2.3) no longer supports ossl < 1.1.
FreeBSD < 120084 still ships that version in base.
- Copy devel/qca to devel/qca-legacy
- Update devel/qca to 2.3
- Switch ports from LIB_DEPENDS=libqca:devel/qtca to USES=qca which pick devel/qca or devel/qca-legacy depending on OS-version