Add a ubuntu lcov nightly configuration

Also install lcov 2.0 into our ubuntu machines.

Change-Id: Ib70445c94ae1dab07b9b58ba58900b12f7d23161
Reviewed-by: Tero Heikkinen <tero.heikkinen@qt.io>
Reviewed-by: Robert Griebl <robert.griebl@qt.io>
Reviewed-by: Simo Fält <simo.falt@qt.io>

coin/platform_configs/nightly_ubuntu_22_04_lcov.yaml

@@ -0,0 +1,14 @@
+Version: 2
+Module only: True
+Configurations:
+-
+    Id: 'ubuntu-22.04-lcov'
+    Template: 'qtci-linux-Ubuntu-22.04-x86_64-51'
+    Compiler: 'GCC'
+    Features: ['Sccache', 'UseConfigure', 'lcov', 'VMSize8']
+    Configure arguments: '-nomake examples -release -force-debug-info -separate-debug-info -headersclean -qt-libjpeg -qt-libpng -qt-pcre -qt-harfbuzz -qt-doubleconversion -no-libudev -bundled-xcb-xinput'
+    Environment variables: [
+        'CMAKE_ARGS=-DOpenGL_GL_PREFERENCE=LEGACY',
+        'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR}}'
+    ]
+

coin/provisioning/qtci-linux-Ubuntu-22.04-x86_64/93-lcov.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# Copyright (C) 2024 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+# Install lcov 2.0 from 24.04/noble numbat
+
+echo "Installing lcov"
+wget https://ci-files01-hki.ci.qt.io/input/lcov/lcov_2.0-4ubuntu1_all.deb
+sudo DEBIAN_FRONTEND=noninteractive apt-get -q -y -o DPkg::Lock::Timeout=300 install -f ./lcov_2.0-4ubuntu1_all.deb