Allow Renovate to auto-update copier template

Context

Due to this project making use of tasks and jinja_extensions, Renovate cannot automatically update the copier template.

If it is possible to remove the need for the tasks and extensions, it would be much simpler to keep projects up to date with the latest changes in the copier template.

User story

As a user with a project making use of the copier template
I want updates to the template to be recommended to be by Renovate
So that I can adopt the latest changes easily

Solution

See child issues

Acceptance criteria

1. Running copier update does not require --trust
2. Renovate can be configured to automatically update the copier template

Links and references

Ready for refinement

• There is relevant context to the issue
• There is a user story and/or a problem statement
• The requirements are clear
• There are appropriate acceptance criteria
• Relevant links and references are available (optional)