v2.6.1

What's Changed

• Feat/lt/miner mgr api by @diwufeiwen in #293
• Merge pull request #317 from filecoin-project/opt/import-data by @simlecode in #318
• chore: bump version to v2.6.1 by @simlecode in #319

Full Changelog: v2.6.0...v2.6.1