Upgrade graphql-tools package to use GraphQL v15

[irajtaghlidi]

update graphql-tools package to 4.0.8 to use GraphQL v15 syntaxes.

related to #8374

[codecov]

Codecov Report

Merging #8461 into master will decrease coverage by 8.55%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8461      +/-   ##
==========================================
- Coverage   33.26%   24.71%   -8.56%     
==========================================
  Files        1221     1103     -118     
  Lines       13629     9740    -3889     
  Branches     1357      560     -797     
==========================================
- Hits         4534     2407    -2127     
+ Misses       8211     6834    -1377     
+ Partials      884      499     -385     

Flag	Coverage Δ
front	24.71% <ø> (ø)
unit	?

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Impacted Files	Coverage Δ
...strapi/lib/services/entity-validator/validators.js
...ages/strapi-generate/lib/helpers/template/index.js
...ackages/strapi/lib/load/check-reserved-filename.js
...kages/strapi-admin/validation/common-validators.js
...pi-plugin-content-type-builder/utils/attributes.js
packages/strapi-utils/lib/webhook.js
packages/strapi-plugin-upload/errors.js
packages/strapi-admin/services/content-type.js
...pi-plugin-content-manager/utils/parse-multipart.js
packages/strapi-plugin-graphql/services/naming.js
... and 107 more

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[darron1217]

extend syntax is not supported on current version.
Please merge this PR to support it. @derrickmehaffy

[derrickmehaffy]

This pull request has been mentioned on Strapi Community. There might be relevant details there:

https://forum.strapi.io/t/extend-user-permissions-graphql-schema/995/1

[iicdii]

@derrickmehaffy
I think we need to remove this package instead of maintaining it, since apollo-server-koa includes graphql-tools itself in package.json.
I've explained this in detail in my previous PR - #6888 (comment)