The saucelabs connect tunnel utility is now only downloaded when a
saucelabs related test is executed. Previously it was part of the
root `package.json` and downloaded whenever a package install was
executed. The utility archive was also not an actual package which
incidentally worked with npm but does not work with newer versions
of yarn. A SHA256 check is also now performed prior to executing
the utility to verify the expected file is present.
* build: yarn upgrade lock update
* build: change sauce connect proxy name to avoid npm package shadowing
`sauce-connect` is an old npm package. Using the name for the saucelabs proxy tool causes false security vulnerability warnings.
* build: update license exceptions
mainly removal of now unneeded exceptions
