Add wget to release image

[rocketnova]

Ticket

• N/A

Changes

What was added, updated, or removed in this PR.

• Updates Dockerfile to install wget for the release target

Context for reviewers

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wget is used by default for the infrastructure template ELB healthcheck. This PR adds wget to the production release image.

Testing

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Test this PR by using the mock-production docker compose:

1. Checkout this branch: git checkout rocket/install-wget
2. Change to the application directory: cd app-rails
3. Initialize the container: make init-container DOCKER_COMPOSE_ARGS="-f ../docker-compose.mock-production.yml"
   • This builds and uses the release Dockerfile stage. See the container-images documentation for more information.
4. Fill in the .env details in /app-rails/.env
   • You must do this otherwise the container won't start correctly.
5. Start the container: make start-container DOCKER_COMPOSE_ARGS="-f ../docker-compose.mock-production.yml"
6. In another terminal window, start a shell in the container: docker compose -f ../docker-compose.mock-production.yml exec app-rails bash
7. Use which to verify that wget is installed. For example:
   •