Release 0.8.0

What's Changed
==============
* chore(deps): Update rstest requirement from 0.17.0 to 0.18.1 by @dependabot in #282
* chore(deps): do not enable default features of chrono by @flavio in #286
* chore(deps): Update pem requirement from 2.0 to 3.0 by @dependabot in #289
* conformance: add conformance CLI and action by @jleightcap in #287
* chore: fix clippy warnings by @flavio in #292
* chore(deps): Bump actions/checkout from 3.5.3 to 3.6.0 by @dependabot in #291
* chore(deps): Update tough requirement from 0.13 to 0.14 by @dependabot in #290
* chore(deps): update to latest version of picky by @flavio in #293
* chore(deps): Bump actions/checkout from 3.6.0 to 4.0.0 by @dependabot in #294
* chore: add repository link to Cargo metadata by @flavio in #297
* chore(deps): Update cached requirement from 0.44.0 to 0.45.1 by @dependabot in #298
* chore(deps): Bump actions/checkout from 4.0.0 to 4.1.0 by @dependabot in #302
* chore(deps): Update cached requirement from 0.45.1 to 0.46.0 by @dependabot in #301
* chore(deps): Update testcontainers requirement from 0.14 to 0.15 by @dependabot in #303
* chore(deps): Bump actions/checkout from 4.1.0 to 4.1.1 by @dependabot in #304
* cosign/tuf: use trustroot by @jleightcap in #305
* Fix broken tests, update deps by @flavio in #313

New Contributors
================

* @jleightcap made their first contribution in #287

**Full Changelog**: v0.7.2...v0.8.0

Signed-off-by: Luke Hinds <luke@stacklok.com>
Co-authored-by: Flavio Castelli <fcastelli@suse.com>