Add docker-compose.override.yml to .gitignore

[officialJCReyes]

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[officialJCReyes]

Added docker-compose.override.yml to .gitignore. This ensures that local configuration changes (e.g., custom ports, volume mounts, or environment variables) stay local and don't accidentally get committed to the repo.

Example: I added mem_limt: and cpu:, as well as changing my external port.

[officialJCReyes]

I have read the CLA Document and I hereby sign the CLA

[daveearley]

Thanks, @officialJCReyes!