Flux memory limits lead to OOM Killed when reading in large Git repos

The current limit of 256Mi is too low if you ever pull in a larger git repository containing a Helm chart. When I put in https://github.com/sonarsource/helm-chart-sonarqube, I get OOM Killed errors and restarts, resulting in delays for the deployment.

I suspect we may have some users adding their own charts from Git for mission apps and the charts may be larger than what we provide in repo1. If I increase my default memory to 384Mi, my OOM Killed issue goes away.