fix(deps): update dependency graphql-tools to v4.0.5

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
graphql-tools	dependencies	patch	4.0.4 -> 4.0.5

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Release Notes

apollographql/graphql-tools

### [`v4.0.5`](https://togithub.com/apollographql/graphql-tools/blob/master/CHANGELOG.md#​405) [Compare Source](https://togithub.com/apollographql/graphql-tools/compare/v4.0.4...v4.0.5) - Fixes a bug where schemas with scalars could not be merged when passed to `mergeSchemas` as a string or `GraphQLSchema`.
[@​hayes](https://togithub.com/hayes) in [#​1062](https://togithub.com/apollographql/graphql-tools/pull/1062) - Make `mergeSchemas` optionally merge directive definitions.
[@​freiksenet](https://togithub.com/freiksenet) in [#​1003](https://togithub.com/apollographql/graphql-tools/pull/1003) - Allow user-provided `buildSchema` options.
[@​trevor-scheer](https://togithub.com/trevor-scheer) in [#​1154](https://togithub.com/apollographql/graphql-tools/pull/1154)

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