v0.6.3

What's Changed

• Synchronize common files from prometheus/prometheus by @prombot in #19
• Synchronize common files from prometheus/prometheus by @prombot in #20
• Synchronize common files from prometheus/prometheus by @prombot in #21
• Update dependencies, drop unsupported ruby versions, create rubocop todo by @zhulik in #22

New Contributors

• @prombot made their first contribution in #19
• @zhulik made their first contribution in #22

Full Changelog: v0.6.2...v0.6.3