feat: prisma update typegraphql

[knapeto]

For new version of prisma they changed mutation operation name. So for back compatibility I would allow to override prefixes via options

[knapeto]

@davidmwhynot thank you very much for your review! If you want take a look again on it otherwise I will marge it

[davidmwhynot]

@knapeto Thanks for making those changes. Everything LGTM.

@macrozone Are you able to make a beta release w/ these changes?

[github-actions[bot]]

:tada: This PR is included in version @ra-data-prisma/dataprovider-v7.0.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: