v0.83.0

• Bump github.com/mackerelio/mkr from 0.58.0 to 0.59.0 in /wix #1029
• Bump github.com/mackerelio/mackerel-agent-plugins from 0.82.1 to 0.86.0 in /wix #1028
• add mackerel-plugin-snmp and check-ping to Windows build. #1027
• fix lint error #1025
• Write out error message when plugin seems have a bug #1024
• Bump github.com/mackerelio/go-check-plugins from 0.46.3 to 0.47.0 in /wix #1022
• Use Azure Trusted Signing for Windows installer code signing #1021