InFlightLimit::None cannot be deserialized

[juchiast]

This breaks vector generate for sinks that have TowerRequestConfig in there config struct. For example, sink aws_s3:

Generated config:

data_dir = "/var/lib/vector/"

[sinks.sink0]
healthcheck = true
inputs = ["TODO"]
bucket = ""
compression = "none"
type = "aws_s3"

[sinks.sink0.batch]

[sinks.sink0.request]
in_flight_limit = "None"

[sinks.sink0.request.auto_concurrency]
decrease_ratio = 0.9
ewma_alpha = 0.5
rtt_threshold_ratio = 0.05

[sinks.sink0.buffer]
type = "memory"
max_events = 500
when_full = "block"

Error:

unknown variant `None`, expected `auto` for key `sinks.sink0`

[juchiast]

hmm I sent a PR..