Support @graphql-codegen/cli v6

[gabitoesmiapodo]

@graphql-codegen/cli v6 has been released. The current dependency declaration in package.json pins to ^5:

```json
"@graphql-codegen/cli": "^5"
```

Please update to support both v5 and v6:

```json
"@graphql-codegen/cli": "^5 || ^6"
```

We are currently using pnpm overrides as a workaround in dAppBooster.