infra: metrics/docker-compose.yml still declares the obsolete top-level version key removed from root docker-compose.yml

[Maki-Zeninn]

Description

metrics/docker-compose.yml line 1 begins with:

version: '3.8'

services:

The top-level version key in Compose files has been obsolete since Compose V2 (the docker compose CLI plugin ignores it and prints a warning: the attribute \version` is obsolete). The root docker-compose.ymlalready reflects this — it has noversion:key at all and starts directly with its header comment block beforeservices:` (line 11).

Impact

Running docker compose -f metrics/docker-compose.yml up (or any docker compose command against this file) prints an "obsolete" warning on every invocation, which is just noise, and the file is now inconsistent with the versioning convention already adopted in the root docker-compose.yml.

Suggested fix

Remove the version: '3.8' line from metrics/docker-compose.yml, matching the root docker-compose.yml:

services:
  # Metrics exporter
  router-metrics-exporter:
    ...

[almuslavish]

@almuslavish has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would like to work on this issue pls 🙏🙏🙏🙏

ℹ️ Repo Maintainers: To accept this application, review their application or assign @almuslavish to this issue.

[iyiade08]

@iyiade08 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi, this task aligns well with my background. I've reviewed what's needed and would be glad to take it on.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @iyiade08 to this issue.