Bandwidth limit is broken when DecodeHeaders returns api.Running

[spacewander]

Bug

Captured in the test: https://github.com/mosn/htnn/actions/runs/9541395941/job/26295463705?pr=588
According to the debug log, the bandwidth limit filter is not invoked when DecodeHeaders returns api.Running.

Expected Behavior

No response

Actual Behavior

No response

Steps to Reproduce

Configure both bandwidthLimit plugin & a Go plugin which uses DecodeHeaders.

Reproducible Code

No response

Environment

• HTNN version:

[spacewander]

The bandwidth limit filter registers callbacks to control the decoding according to the token timer. So the same as Golang filter when DecodeHeaders returns api.Running. Their callbacks doesn't work well together.