fix: issues with scripts, no aws (#4)

Fixes the following issues with the `web/git` Ansible scripts.

- Updates cache before installing `python3-pip`.
- Forces `terraform init` configuration during provisioning.
- Requires user to set an `endpoint_url` to get the backup file from S3.

In addition, I'm removing the last of AWS from the repository:

- The routing uses Hetzner now, so let's get rid of all of that.

Reviewed-on: #4
Co-authored-by: Max <git@maximhutz.me>
Co-committed-by: Max <git@maximhutz.me>

playbooks/restore.yml

@@ -36,6 +36,7 @@
         region: "{{ secret.restore.region }}"
         access_key: "{{ secret.restore.access_key }}"
         secret_key: "{{ secret.restore.secret_key }}"
+        endpoint_url: "{{ secret.restore.endpoint | mandatory(msg='You must specify the S3 URL.') }}"
         ignore_nonexistent_bucket: true
 
     - name: Ensure backup directory exists.