[PATCH 3/6] qa: Replace deprecated qVariantFromValue() by QVariant::fromValue()

[PATCH 3/6] qa: Replace deprecated qVariantFromValue() by QVariant::fromValue()

From 1f21c1f9613031ae263eeed0c4883bfcd5488343 Mon Sep 17 00:00:00 2001
Bug: https://bugs.quassel-irc.org/issues/1544
Bug-Ubuntu: https://bugs.launchpad.net/quassel/+bug/1885436
Origin: upstream, https://github.com/quassel/quassel/pull/518
Origin: upstream, https://github.com/quassel/quassel/commit/1f21c1f9613031ae263eeed0c4883bfcd5488343

Deprecated since Qt 5.14.

Gbp-Pq: Topic qt514
Gbp-Pq: Name 0003-qa-Replace-deprecated-qVariantFromValue-by-QVariant-.patch