v1.12.0

One change to fix a significant panic in the new health checks system (#415), a fix for mkdir to chmod as expected, and several minor changes.

What's Changed

• fix(checkstate): ignore and abort carryover changes by @flotter in #415
• feat(personality): Allow state filename customization by @thp-canonical in #416
• docs: starter pack by @IronCore864 in #417
• docs: splitting readme into pebble docs with the diataxis method by @IronCore864 in #419
• feat: unified osutil.Mkdir API with options by @IronCore864 in #418
• fix: note exist-ok behaviour of "mkdir -p" in argument help by @benhoyt in #424
• fix: avoid legacy Snapcraft location for LP creds by @cjdcordeiro in #425
• feat(osutil.Mkdir): add the chmod flag by @IronCore864 in #423
• chore: update golang.org/x dependencies by @benhoyt in #426

Full Changelog: v1.11.0...v1.12.0