Timeout when Grafana option "autoMigrateOldPanels" is enabled

[distahl]

What happened:
When I enable this option in grafana.ini, which automatically converts deprecated angular graphs to newer ones, the grafana-image-renderer runs into a timeout trying to render such converted graphs.

[feature_toggles]
autoMigrateOldPanels = true

What you expected to happen:
Render the image correctly and in time.

How to reproduce it (as minimally and precisely as possible):

1. In Grafana, create a graph with, e.g., "Graph (Old)" visualization.
2. Enable autoMigrateOldPanels in Grafana config
3. Try to render an image for the graph created.

Anything else we need to know?:

Environment:

• Grafana Image Renderer version: 3.11.0
• Grafana version: 10.4.5
• Installed plugin or remote renderer service: Plugin
• OS Grafana Image Renderer is installed on: Oracle Linux 8.10
• User OS & Browser: Windows 11, Chromium 126.0.6478.127
• Others: