Release version 0.69.0

[mackerelbot]

• revert changing filename unexpectedly revert changing filename unexpectedly #658
• Bump github.com/shirou/gopsutil from 2.20.6+incompatible to 2.20.8+incompatible Bump github.com/shirou/gopsutil from 2.20.6+incompatible to 2.20.8+incompatible #656
• Bump github.com/mattn/goveralls from 0.0.6 to 0.0.7 Bump github.com/mattn/goveralls from 0.0.6 to 0.0.7 #657
• Bump github.com/Songmu/prompter from 0.3.0 to 0.4.0 Bump github.com/Songmu/prompter from 0.3.0 to 0.4.0 #655
• revert mkdir with shell expansion revert mkdir with shell expansion #654
• add arm64 RPM packages, and change deb architecture to be correct add arm64 RPM packages, and change deb architecture to be correct #653
• update go: 1.12 -> 1.14 update go: 1.12 -> 1.14 #648

[astj]

This version will not be shipped to our apt / yum repositories, since RPM build process is misconfigured and we need to fix it (#660). We will ship 0.69.1 (#661) instead ⛵