Change DTLS transport state transition optimisations Call `anyrtc_dtls_transport_stop` when state goes to 'failed' or 'closed'
Change DTLS transport state transition optimisations
Call `anyrtc_dtls_transport_stop` when state goes to 'failed' or 'closed'

rawrtc/rawrtc,rawrtc/rawrtc,rawrtc/rawrtc,rawrtc/rawrtc