[DO NOT MERGE] Upgrade version of graphql-core to >3.0.0 without breaking github_security audit events ^

[gds-ahine]

This shouldn't be merged until we can also upgrade to gql:3 currently in alpha

Dependabot alert to bump the version of graphql-core broke the github audit events.

We reverted back to <3.0.0 but we should look into upgrading to resolve the following issues -:

#572

graphql-python/graphql-core#125
graphql-python/graphql-core#126

[danjoneslf]

Unfortunately we can't implement this at present. The gql library calls a function of graphql-core which has been removed in later versions. There is an equivalent function in 3.* releases but there's not yet a newer release of gql implementing the change.

There is an alpha of gql:3 which addresses this: graphql-python/gql#62 - In alpha in Sep 2020