Merge pull request #236 from 56quarters/resolver

feat: optionally re-resolve hosts for UDP sinks

Merge pull request #235 from 56quarters/executor

chore: extract `QueuingMetricSink` thread logic

Merge pull request #233 from 56quarters/more-versions

chore: update rust-version in README and Cargo.toml

Merge pull request #232 from 56quarters/migrate

docs: update migration guide for 1.7.0 release

Merge pull request #231 from 56quarters/msrv-readme

docs: update MSRV in README section

Merge pull request #230 from 56quarters/version-bump

chore: version bump and changelog for 1.7 release

Merge pull request #227 from danielnorberg/fix-buffered-udp-stats

Revert "Merge pull request #216 from dwhjames/drop_adapter_stats"

Add test for BufferedUdpMetricSink stats