Feature: add parallelism in drone image compilation pipeline

.drone.yml

@@ -33,6 +33,8 @@ steps:
       commands:
           - composer install --no-scripts --no-interaction
           - composer update --with-all-dependencies --no-interaction chill-project/chill-bundles
+      depends_on:
+          - build-base-image
 
     - name: build-assets
       image: node:14
@@ -40,6 +42,8 @@ steps:
       commands:
           - yarn install
           - yarn run encore production
+      depends_on:
+          - composer-install
 
     - name: build-image-php
       image: plugins/docker
@@ -56,6 +60,9 @@ steps:
           cache_from:
               - h3m6q87t.gra7.container-registry.ovh.net/chillbasics/php-base:latest
               - chill/base-image:latest
+      depends_on:
+          - build-assets
+          - composer-install
 
     - name: build-image-nginx
       image: plugins/docker
@@ -70,3 +77,5 @@ steps:
           tag:
             - ${DRONE_TAG}
           Dockerfile: docker/nginx/Dockerfile
+      depends_on:
+          - build-assets