update to project config v3

[rikinsk]

• run codemod upgrade-project-config-v2-to-v3
• run codemod upgrade-context-v2-to-v3

[ajsb85]

Hi, @rikinsk I tried to use this PR, but still the same error: https://github.com/hasura/ddn-sample-app/issues/66 Cheers.