feat(setup-magento)!: change extension working dir to _ghamagento (#367)

BREAKING CHANGE: Previously, when using setup-magento in extension mode, the magento 2 repo root was ../magento2 (outside of the extension folder). Due to interactions with `cache-magento` we need to keep magento inside the GITHUB_WORKSPACE (the root repo). We now do this in the `_ghamagento` folder. If you rely on the `steps.setup-magento.outputs.path` nothing changes for you. But, if you hardcoded the path, it's likely broken.

Co-authored-by: Herve Tribouilloy <herve@digitalrisedorset.co.uk>

Author: digitalrisedorset

setup-magento/action.yml

@@ -69,7 +69,7 @@ runs:
     - run: |
         MAGENTO_DIRECTORY=""
         if [ "${{ inputs.mode }}" = 'extension' ]; then
-            MAGENTO_DIRECTORY="../magento2"
+            MAGENTO_DIRECTORY="_ghamagento"
         else
             MAGENTO_DIRECTORY="${{ inputs.working-directory }}"
         fi