Convert integrationtests/complexbuild to GitHub Actions

Pipeline migrated from Bamboo :tada:

Manual steps

Perform the following steps to complete the migration:

[ ] Ensure a runner with the following labels exists: hasDocker
[ ] Ensure secret is available: ${{ secrets.BAMBOO_SSH_KEY }}
[ ] Ensure secret is available: ${{ secrets.BAMBOO_KNOWN_HOSTS }}
[ ] Ensure secret is available: ${{ secrets.BAMBOO_SSH_PASSWORD }}
[ ] Ensure: Ensure the correct branch is pushed to
[ ] Ensure build tool is available: foo
[ ] Ensure build tool is available: grails-fake
[ ] Ensure: a Gemfile exists at the root of your repository and includes the fastlane gem.
[ ] Ensure build tool is available: Ensure Visual Studio toolset version is correct
[ ] Ensure secret is available: ${{ secrets.KEYCHAIN_PASSWORD }}
[ ] Ensure an environment with the name 'approval_required' exists by following these instructions.
[ ] Ensure secret is available: ${{ secrets.AWS_ACCESS_KEY_ID }}
[ ] Ensure secret is available: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
[ ] Ensure secret is available: ${{ secrets.AWS_S3_BUCKET_KEY }}
[ ] Ensure environment variable is updated: BUNDLE_TYPE
[ ] Ensure secret is available: ${{ secrets.password }}
[ ] Ensure: The variable ${bamboo.working.directory} has been transformed to ${{ env.working_directory }}. Please set the value in as an environment variable or secret.
[ ] Ensure: The variable ${bamboo.tmp.directory} has been transformed to ${{ env.tmp_directory }}. Please set the value in as an environment variable or secret.