MAGECLOUD-2790: [Cloud Docker] Remove root permissions from directories

[shiftedreality]

Description

Config

        {
            "type": "vcs",
            "url": "git@github.com:magento/ece-tools.git"
        },
        {
            "type": "vcs",
            "url": "git@github.com:magento/magento-cloud-docker.git"
        }

        "magento/ece-tools": "dev-MAGECLOUD-4004 as 2002.0.99",
        "magento/magento-cloud-docker": "dev-MAGECLOUD-2790 as 1.0.99"

Build images:

#!/bin/bash

docker build -t test/php:7.2-fpm ../magento-cloud-docker/images/php/7.2-fpm \
  && docker build -t test/php:7.2-cli ../magento-cloud-docker/images/php/7.2-cli \
  && docker build -t test/php:7.2-fpm-dev ../magento-cloud-docker/images/php/7.2-fpm-dev \
  && docker build -t test/php:7.2-cli-dev ../magento-cloud-docker/images/php/7.2-cli-dev \
  && docker build -t test/nginx:1.9 ../magento-cloud-docker/images/nginx/1.9

Fixed Issues (if relevant)

1. https://magento2.atlassian.net/browse/MAGECLOUD-2790

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages

[magento-cicd2]

All committers have signed the CLA.

[andriyShevtsov]

QA approved