Merge branch 'feat/normalize-reports' into 'master'

| `POSTMAN_EXTRA_ARGS`  | Newman extra [run options](https://github.com/postmanlabs/newman#command-line-options) (to use global variables, an environment or a data source for e.g.) | _none_ |

| `REVIEW_ENABLED`      | Set to `true` to enable Postman tests on review environments (dynamic environments instantiated on development branches) | _none_ (disabled) |

### Unit tests report integration

In addition to a textual report in the console, this job produces the following reports, kept for one day:

Postman test reports are [integrated to GitLab by generating JUnit reports](https://docs.gitlab.com/ee/ci/junit_test_reports.html).

This is done using the `newman` [JUnit reporter](https://github.com/postmanlabs/newman#junitxml-reporter)

with the following CLI options: `--reporters cli,junit --reporter-junit-export postman-junit.xml`  

| Report         | Format                                                                       | Usage             |

| -------------- | ---------------------------------------------------------------------------- | ----------------- |

| `reports/postman-*.xunit.xml` | [JUnit](https://github.com/postmanlabs/newman#junitxml-reporter) test report(s) | [GitLab integration](https://docs.gitlab.com/ee/ci/yaml/artifacts_reports.html#artifactsreportsjunit) |

### Postman `{{base_url}}` auto evaluation

    # retrieve server url to test from 'environment_url.txt' file

    - eval_base_url

  script:

    - mkdir -p reports/postman

    - mkdir -p -m 777 reports

    - |

      for collection in $POSTMAN_COLLECTIONS

      do

        log_info "Running collection \\e[33;1m$collection\\e[0m..."

        log_info "Running collection \\e[33;1m${collection}\\e[0m..."

        namenoext=$(basename $collection | sed 's/\..*//')

        newman run $base_url_opt $ca_certs_opt ${TRACE+--verbose} --reporters cli,junit --reporter-junit-export reports/postman/$namenoext.xml $POSTMAN_EXTRA_ARGS "$collection"

        newman run $base_url_opt $ca_certs_opt ${TRACE+--verbose} --reporters cli,junit --reporter-junit-export reports/postman-$namenoext.xunit.xml $POSTMAN_EXTRA_ARGS "$collection"

      done

  artifacts:

    name: "$CI_JOB_NAME artifacts from $CI_PROJECT_NAME on $CI_COMMIT_REF_SLUG"

    when: always

    paths:

      - reports/postman/

      - "reports/postman-*"

    reports:

      junit:

        - reports/postman/*.xml

        - "reports/postman-*.xunit.xml"

    expire_in: 1 day

  rules:

    - !reference [.acceptance-policy, rules]