v4.0.0

What's Changed

• Update CI remote docker version by @dincho in #615
• Update ansible by @IvayloPapazov in #612
• Change node API version to v3 by @IvayloPapazov in #617
• Remove legacy preinstall TF versions by @IvayloPapazov in #618
• Don't restart rsyslog without systemd by @dincho in #623
• Prometheus exporters by @dincho in #624

Full Changelog: v3.0.2...v3.1.0