gonic v0.13.0

⚠ BREAKING CHANGES

• subsonic: don't return gonic version from responses
• bump to go1.16 and embed version

Features

• bump to go1.16 and embed version (6f15589)
• ci: arm builds, push multiple registries (0622672)
• ci: use ghcr and auto release (c2c7eb2)
• subsonic: don't return gonic version from responses (58624f0)

Bug Fixes

• ci: only test on go1.16 (e9743f0)
• don't clutter db close in main (e6b7691)
• trim newline from version (a565008)