A user recently uploaded images that are almost triple that of our average image size which caused the ingest task to fail due to being killed for excessive memory usage
The images were indicative of a higher quality camera and as such should be supported
This PR doubles the task memory to 4gb.
If we continue to see problems we can either increase the memory again or decrease internal concurrency (currently 1k images in parallel)
cc @nathanielrindlaub
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