Use qt5 5.14.1 in CI

Qt5 5.14 is currently broken from Qt For Python point of view,
so we should verify Qt For Python against 5.14.1. This patch
should be reverted once Qt branches are fixed.

Change-Id: I8a0249284665381decc42f94faab6d8e9650f8bb
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>

coin_test_instructions.py

@@ -65,8 +65,7 @@ def call_testrunner(python_ver, buildnro):
     _pExe, _env, env_pip, env_python = get_qtci_virtualEnv(python_ver, CI_HOST_OS, CI_HOST_ARCH, CI_TARGET_ARCH)
     rmtree(_env, True)
     run_instruction(["virtualenv", "-p", _pExe,  _env], "Failed to create virtualenv")
-    # Keeping PyInstaller 3.4, because 3.5 seems to have broken our test
-    install_pip_dependencies(env_pip, ["pip", "numpy", "PyOpenGL", "setuptools", "six", "pyinstaller==3.4", "wheel"])
+    install_pip_dependencies(env_pip, ["pip", "numpy", "PyOpenGL", "setuptools", "six", "pyinstaller==3.6", "wheel"])
     cmd = [env_python, "testrunner.py", "test",
                   "--blacklist", "build_history/blacklist.txt",
                   "--buildno=" + buildnro]

product_dependencies.yaml

@@ -0,0 +1,3 @@
+dependencies:
+  ../../qt/qt5.git:
+    ref: "5.14.1"