feat: add github actions example to deployer

[shyim]

Key changes:

• The pipeline builds Shopware using shopware-cli
• Deployment Helper will be used for migrations and installations
• Added GitHub Action example

Copilot reviewed 1 out of 1 changed files in this pull request and generated 1 suggestion.

Comments skipped due to low confidence (2)

guides/hosting/installation-updates/deployments/deployment-with-deployer.md:283

• The comment should be more specific: 'Increase the timeout value if tasks take longer than 3600 seconds.'

set('default_timeout', 3600); // Increase when tasks take longer than that.

guides/hosting/installation-updates/deployments/deployment-with-deployer.md:186

• [nitpick] Double-check if '.env.local' is the correct file to be copied instead of '.env'.

cp /var/www/shopware_backup/.env.local /var/www/shopware/shared/.env.local

[Isengo1989]

Thx for the PR @shyim 🎉