Minor release 1.0.8

See CHANGLOG.md.

What's Changed

• Give converted waypoints lane ids. by @Gamenot in #1900
• Fix SMARTS ignores social agent start time. by @Gamenot in #1899
• Fix hiway-v1 metadata["render_modes"] by @Gamenot in #1901
• Fix engine configuration bool cast. by @Gamenot in #1903
• Upgrade minimum Python version to 3.8 by @saulfield in #1904

Full Changelog: v1.0.7...v1.0.8