release: bump version to v0.8.0

[jrriehl]

Proposed changes

Release v0.8.0

Types of changes

What types of changes does your code introduce?
Put an x in the boxes that apply

• Bugfix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to stop working as expected)
• Something else (e.g. tests, scripts, example, deployment, infrastructure, ...)

Checklist

Put an x in the boxes that apply.

• I have read the CONTRIBUTING document.
• I have based my branch, and I am making a pull request against, the main branch.
• Checks and tests pass locally.

[MissingNO57]

LGTM