Release v0.6.7

Release supporting ZIO 2.0.0-RC6

What's Changed

• Update eff to 6.0.0 by @scala-steward in #315
• Update zio, zio-test, zio-test-sbt to 1.0.14 by @scala-steward in #314
• Update scala3-library to 3.1.2 by @scala-steward in #313
• Update sbt-bloop to 1.5.0 by @scala-steward in #316
• Update zio, zio-test, zio-test-sbt to 2.0.0-RC6 by @scala-steward in #317

Full Changelog: v0.6.6...v0.6.7