Replace openSUSE 15.1 with openSUSE 15.2

Task-number: QTQAINFRA-4035
Change-Id: I11746ab2d6447dd5d33846bff68f6983670adbbe
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Ville-Pekka Karhu <ville-pekka.karhu@qt.io>
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>

coin/platform_configs/cmake_platforms.yaml

@@ -37,7 +37,7 @@ Configurations:
     Environment variables: ['NON_QTBASE_CONFIGURE_ARGS=-DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache',
         'TEST_CONFIGURE_ARGS=-DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache']
 -
-    Template: 'qtci-linux-openSUSE-15.1-x86_64'
+    Template: 'qtci-linux-openSUSE-15.2-x86_64-50'
     Compiler: 'GCC'
     Features: ['Sccache', 'InsignificantTests']
     Configure arguments: '-DBUILD_EXAMPLES=OFF -FEATURE_developer_build=ON -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache'

coin/platform_configs/default.yaml

@@ -21,7 +21,7 @@ Configurations:
     Features: ['OutOfSourceBuild', 'Documentation', 'UseLegacyInstructions']
     Configure arguments: '-qmake -opensource -confirm-license -verbose -prefix /home/qt/work/install -developer-build -no-warnings-are-errors -nomake tests -R . -qtlibinfix TestInfix -qtnamespace TestNamespace -openssl'
 -
-    Template: 'qtci-linux-openSUSE-15.1-x86_64'
+    Template: 'qtci-linux-openSUSE-15.2-x86_64-50'
     Target os: 'WebAssembly'
     Compiler: 'GCC'
     Features: ['DisableTests', 'UseLegacyInstructions']

coin/platform_configs/qtbase.yaml

@@ -2,7 +2,7 @@ Version: 2
 Include: [cmake_platforms.yaml]
 Configurations:
 -
-    Template: 'qtci-linux-openSUSE-15.1-x86_64'
+    Template: 'qtci-linux-openSUSE-15.2-x86_64-50'
     Target os: 'WebAssembly'
     Compiler: 'GCC'
     Features: ['DisableTests', 'UseLegacyInstructions']

coin/provisioning/qtci-linux-openSUSE-15.2-x86_64/02-zypperpackages.sh

@@ -32,7 +32,7 @@ sudo zypper -nq install xcb-util-devel xcb-util-image-devel xcb-util-keysyms-dev
          xcb-util-wm-devel xcb-util-renderutil-devel
 
 # ICU
-sudo zypper -nq install libicu-devel libicu60_2
+sudo zypper -nq install libicu-devel
 
 # qtwebengine
 sudo zypper -nq install alsa-devel dbus-1-devel \