v0.12.1

What's Changed

• docs: update installation instructions in readme by @pottekkat in #161
• fix(core): upstream linter check either nodes or service discovery by @bzp2010 in #163
• fix(core): ssl secret ref by @bzp2010 in #164
• feat: bump to 0.12.1 by @bzp2010 in #165

Full Changelog: v0.12.0...v0.12.1