chore(release): bump SigNoz to v0.115.0

[primus-bot]

Summary

• Release SigNoz v0.115.0

Created by Primus-Bot

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Note

Medium Risk
Low code-change risk (config-only), but upgrading the running SigNoz image can introduce behavioral changes and require compatible migrations when deployed.

Overview
Updates the signoz/signoz image tag from v0.114.1 to v0.115.0 across the Docker Compose deployment manifests (deploy/docker/* and deploy/docker-swarm/*, both HA and non-HA).

^{Written by Cursor Bugbot for commit b86138f. This will update automatically on new commits. Configure here.}

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