fix: decrease socket proxy log verbosity (#106)

The default seems to be `info` and fills logs with what seem to be requests to docker daemon (which makes me wonder what needs network access to the docker daemon?). Please let me know if it should be made configurable.

* [x] I have deployed and tested my changes
* [ ] I have [updated relevant versions in `abra.sh`](https://docs.coopcloud.tech/maintainers/upgrade/#updating-versions-in-the-abrash)
* [ ] I have made my environment variable changes [backwards compatible](https://docs.coopcloud.tech/maintainers/upgrade/#backwards-compatible-environment-variable-changes)
* [ ] I have added a [release note entry](https://docs.coopcloud.tech/maintainers/upgrade/#creating-new-release-notes)

Reviewed-on: coop-cloud/traefik#106
Reviewed-by: p4u1 <p4u1@noreply.git.coopcloud.tech>
Co-authored-by: f <f@sutty.nl>
Co-committed-by: f <f@sutty.nl>

compose.yml

@@ -91,6 +91,7 @@ services:
       - TASKS=1 # Needs access
       - VERSION=1 # Needs access
       - VOLUMES=0
+      - LOG_LEVEL=warning
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
     networks: