And expose through Project Properties elevation settings widget
This setting allows users to specify the upper and lower
elevation limits associated with the project. (I.e. its an
equivalent to QgsProjectTimeSettings::temporalRange)
The original workaround was only supposed to apply to QList/
QVector of QVariantMaps. By replacing them all in sip we
break mapping of signals defined in c++ which are emitted
by Python code.
Fixes exceptions after running processing algorithms in Qt6
builds.
