Disable 'Starts from desktop shortcut' system test (PR #14294)
The test 'Starts from desktop shortcut' relies on NVDA to be running to
send the hotkey. This interferes with the logic of the test.
The test intermittently fails, see: #14054
Disable test until this can be addressed.
Issue #14293 has been opened to resolve this and re-enable the test.
