Support TypeScript 4.2 (SonarSource#2516)

Add QA for Node.js v15

Revert "Use @babel/eslint-parser instead of babel-eslint (SonarSource…

…#2487)" (SonarSource#2492)

This reverts commit ca56746

Update Jest (SonarSource#2446)

Execute Java based parser only for custom rules

Fix highlighting for S3757 (SonarSource#2409)

Update rule metadata (SonarSource#2346)

Deprecate rule S4784 (SonarSource#2277)

Update rule metadata (SonarSource#2175)

Fix SSF-122 (SonarSource#2161)

(cherry picked from commit 5f1f8e8)