SONARPY-1257 fix quality flaws (SonarSource#1365)

Update headers for Python files

Enable build of dogfood branches (SonarSource#1334)

Update rules metadata (SonarSource#1322)

Update rule metadata to prepare v3.21 bis (SonarSource#1316)

* Update rule metadata to prepare v3.21 bis

* restore unrelated files

Update parent pom (SonarSource#1282)

SONARPY-1146 Rule S6329: Allowing public network access to cloud reso…

…urces is security-sensitive - Implement for Instances related resources (SonarSource#1246)

* SONARPY-1146 Rule S6329: Allowing public network access to cloud resources is security-sensitive - Implement for Instances related resources

Update rule metadata (SonarSource#1226)

Update rule metadata (SonarSource#1202)

Update parent pom to version 63.0.187 (SonarSource#1182)