Fix the find_qmlimporter_path test on FreeBSD

The qmlimportscanner executable is not necessarily located in /usr/bin across
all OSes, so only check that we located an executable with a fitting name.

Make static runtime default and build with native ARM runners

deployers: Simplify TextToSpeechPluginsDeployer

With the refactor of BasicPluginsDeployer, we can collapse the contents of the TextToSpeechPluginsDeployer to just a call into the base class, with the appropriate argument.

Update Node 12 actions