Allow max header size configurable via runtime config #26690
Description
Couple of points
- Would it be OK to make the default value read from a runtime config instead of hardcoding it to 60Kib?
- If we introduce a runtime config - Can the default of the runtime config be changed to a higher value? What would be the considerations (security , memory etc) for choosing that default in Envoy?
Refer #5859 for more context