v1.6.0-rc.5

Changelog

• 3df4c0b Add Documentation>CLI>Add bookmark (#794)
• cf7301c Fixed lint errors after refactor (#806)
• 7c4e5fb ci: add codecov reporting (#776)
• 9746add deps: update go dependencies (#777)
• fe6a306 deps: upgrade (#804)
• 188ce68 fix: generate coverage profile (#797)
• d371ee6 fix: typo in URL under documentation (#778)
• f01f2db fix: use noreferer to prevent exposing shiori instance url to archived websites (#802)
• cc7c751 refactor: migrate bookmark static pages to new http server (#775)