Optimize plugin download on SonarCloud

[saberduck]

We should add a new field of languages we analyze to the plugin manifest, so the plugin is downloaded from SonarCloud only when needed. See work done in https://sonarsource.atlassian.net/browse/SC-8970

Identified languages (to be confirmed) : js, ts, css, web, yaml

This should be only added after sonar-security adds the subset of languages to their plugin otherwise, sonar-security can fail on runtime because it depends on sonar-javascript plugin.

Also note that in the SonarCloud ticket they assume that file property is called “_sonar.{languageKey}.file.suffixes”_,, which is not true for our plugin. The language key is js or ts, while the property is sonar.javascript.file.suffixes or sonar.typescript.file.suffixes respectively. This should be clarified with SonarCloud team