v0.66.1

This release has no functional changes, it just drops the dependencies github.com/grafana/regexp and go.uber.org/atomic and replaces gopkg.in/yaml.v2 with go.yaml.in/yaml/v2 (a drop-in replacement).

What's Changed

• Revert "Use github.com/grafana/regexp instead of regexp" by @aknuds1 in #835
• Move to supported version of yaml parser by @dims in #834
• Revert "Use go.uber.org/atomic instead of sync/atomic (#825)" by @aknuds1 in #838

Full Changelog: v1.20.99...v0.66.1