Yarn configurable installation suffix

[tomasAlabes]

Do you want to request a feature or report a bug? Feature What is the current behavior? There's no way to proxy the github releases downloads in artifactory (see here). This can be solved by being able to change the /<version>/yarn-<version>.tar.gz suffix that the plugin concatenates to the DownloadRoot. What is the expected behavior? An option to define the suffix for the yarn download would be nice, so we could use for example the npm registry as proxy for the yarn tarball. https://registry.npmjs.org/yarn/-/v0.18.1/yarn-v0.18.1.tar.gz doesn't work, but https://registry.npmjs.org/yarn/-/yarn-0.18.1.tgz works and can be proxied by Artifactory. Please mention your frontend-maven-plugin and operating system version. v1.3, macOS Sierra

Thank you for this great plugin!

[anowak-ct]

Same issue with node/npm: Downloading https://nodejs.org/dist/v15.10.0/npm-v15.10.0.tgz
This link does not exist, but *.tar.gz does