Add image formats to gatsby-plugin-sharp options

[leecalcote]

Description

• This adds support for advanced image formats, including AVIF.
• The build time greatly increases with these options enabled.

Notes for Reviewers

• We should probably configure these options only to be active in production builds.

Signed commits

• Yes, I signed my commits.

[l5io]

🚀 Preview for commit b4853c9 at: https://6924df356e0190d312e03aaa--layer5.netlify.app

[leecalcote]

We should probably configure these options only to be active in production builds.

[l5io]

🚀 Preview for commit fecfc4d at: https://692d4dfacb2fccaf21fe7a50--layer5.netlify.app