v3.30.0

Added

• Send queue metrics to Datadog when job received #1442 (keithduncan)
• Add flag to send Datadog Metrics as Distributions #1433 (amukherjeetwilio)
• Ubuntu 18.04 based Docker image #1441 (keithduncan)
• Build binaries for netbsd and s390x #1432, #1421 (yob)
• Add wait-for-ec2-meta-data-timeout config variable #1425 (OliverKoo)

Changed

• Build using golang 1.16.4 #1429
• Replace kr/pty with creack/pty and upgrade from 1.1.2 to 1.1.12 #1431 (ibuclaw)

Fixed

• Trim trailing slash from buildkite-agent artifact upload when using custom S3 bucket paths #1427 (shevaun)
• Use /usr/pkg/bin/bash as default shell on NetBSD #1430 (ibuclaw)