v2.8.0

Changelog

9cbfdf6 feat: Add --persistent-state option for location of persistent state file
cbac205 feat: Add --reverse option to diff command
dec8789 feat: Add .chezmoi.executable template variable
8a6d4d7 feat: Add .chezmoiroot to allow source state to be subdir of source dir
518313b feat: Add cache HTTP client to cache downloads in .chezmoiexternal.
8e1d647 feat: Add gitHubLatestRelease template function
ebacee7 feat: Add support for Homebrew on Linux to upgrade command
3a4c1d0 feat: Add upgrade method to doctor command output
90120fe feat: Caching the response of the GitHub API
240f7ec feat: Make .chezmoidata. and .chezmoitemplates available in .chezmoiignore
53cfa6e fix: Return unparsed gopass output in gopassRaw template func
e9e4712 fix: Warn, don't fail, if age version cannot be parsed in doctor command
016da7a fix: lookPath panics when file does not exists