This also forces the karma test to use the Gradle-installed version of
node instead of the global version. The global version installed on the
Kokoro machines is too old to function with some of the newer libraries.
* Update NPM plugin and hardcode versions of Node / NPM to use
The plugin we were using before was a bit old (last updated in March
2019) and this one is newer, updated, and updates the package-lock file
with the new dependency upgrades
Replace deprecated GoogleCredential with new lib
This PR also introduced a CredentialsBundle class to carry
HttpTransport and JsonFactory object which are needed by
most of the GCP library to instantiate client.
The check for environment cannot be done when the task is defined,
otherwise running any task will fail when the check does not pass.
Instead, check the environment when the task executes.
I'm seeing odd errors in versions of Karma more recent than 3.0.0. While
I investiage, I'd like to see what Github has to say about these
dependencies (we got some vulnerability messages for earlier versions)
