Optimized Bitbucket pipeline with SonarCloud pipe and proper cache

bitbucket-pipelines.yml

image: atlassian/default-image:2

clone:
  depth: full              # SonarCloud scanner needs the full history to assign issues properly

definitions:
  services:
    docker:
      memory: 2560

  steps:
    - step: &sca
          image: atlassian/default-image:2  #quickest image
          name: SonarCube SCA
          caches:
            - docker
          script:
            - pipe: sonarsource/sonarcloud-scan:1.1.0
            - pipe: sonarsource/sonarcloud-quality-gate:0.1.3
          services:
            - docker

pipelines:
  pull-requests:
    '**':
      - step: *sca