Upgrades dev-tools to use Drupal 9

[vincent-gao]

Issues

1. gojq version issue

   • this should be fixed when https://github.com/dpc-sdp/bay/pull/69 get merged.

2. rewrite the script for merging 2 composer configs .

   • https://github.com/dpc-sdp/dev-tools/pull/58/files#diff-4115c814c3931e874826390308d433a4697fc836598a53caaff3975e373d518eR15

3. tide_core module upgrading

   • https://github.com/dpc-sdp/tide_core/pull/258 WIP

4. lagoon doesn't support Drush 10

   • Drush 10 has moved to use the yaml configurations instead of drush/aliases.drushrc.php, which makes us losing ability to inject {ENV.LAGOON_ROUTE} to the drush command.

     
     In Request.php line 1174:

   Invalid Host "${env.lagoon_route}".

   
   I noticed that lagoon has a file that resides in `/home/.drush/drush.yml`
   ```bash
   # Lagoon global drush.yml file
   # This file tells Drush 9 about the lagoon environment

options: root: '/app/${env.WEBROOT}' uri: '${env.LAGOON_ROUTE}'

But local env doesn't have `LAGOON_ROUTE` variable. 
   -  current workaround , I just define required env variable  at https://github.com/dpc-sdp/dev-tools/pull/58/files#diff-4781086fb4970c687170cb2a718ef8c072ab6e6d9f9990e77e5f385e0434852aR12
   ```bash
WEBROOT=${WEBROOT:-docroot}
URI= ${LOCALDEV_URL:-dev}

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5. CONFIG_SYNC_DIRECTORY is not supported
   • https://github.com/drush-ops/drush/issues/4293

     ---

6. dependency issues

   • https://github.com/dpc-sdp/tide/pull/150

7. integratedexperts/behat-relativity doesn't support Drupal 9

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8 . we will use Drupal\MinkExtension behat extesion.

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9. CI failed because gojq hasn’t made it into the 3.x image on Docker Hub yet

[vincent-gao]

@vincent-gao I've raised a query on your comment wrt the change to the composer merge script. There's a significant reduction to the readability of the script which would impact future dev.

Thanks for the review @GROwen , just answered your question on https://github.com/dpc-sdp/dev-tools/pull/58#discussion_r727665473