fix github, json, apollo and prisma loader

[n1ru4l]

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[changeset-bot]

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Latest commit: 4aa02a6

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[theguild-bot]

The latest changes of this PR are available as alpha in npm (based on the declared changesets):

@graphql-tools/batch-delegate@8.0.0-alpha-4dfa5c20.0
@graphql-tools/batch-execute@8.0.0-alpha-4dfa5c20.0
@graphql-tools/delegate@8.0.0-alpha-4dfa5c20.0
@graphql-tools/graphql-tag-pluck@7.0.0-alpha-4dfa5c20.0
graphql-tools@8.0.0-alpha-4dfa5c20.0
@graphql-tools/jest-transform@1.0.0-alpha-4dfa5c20.0
@graphql-tools/links@8.0.0-alpha-4dfa5c20.0
@graphql-tools/load@7.0.0-alpha-4dfa5c20.0
@graphql-tools/apollo-engine-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/code-file-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/git-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/github-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/graphql-file-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/json-file-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/module-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/prisma-loader@6.3.1-alpha-4dfa5c20.0
@graphql-tools/url-loader@7.0.0-alpha-4dfa5c20.0
@graphql-tools/merge@6.2.15-alpha-4dfa5c20.0
@graphql-tools/mock@8.1.4-alpha-4dfa5c20.0
@graphql-tools/node-require@6.2.5-alpha-4dfa5c20.0
@graphql-tools/relay-operation-optimizer@6.3.1-alpha-4dfa5c20.0
@graphql-tools/resolvers-composition@6.3.0-alpha-4dfa5c20.0
@graphql-tools/schema@8.0.0-alpha-4dfa5c20.0
@graphql-tools/stitch@8.0.0-alpha-4dfa5c20.0
@graphql-tools/stitching-directives@2.0.0-alpha-4dfa5c20.0
@graphql-tools/utils@8.0.0-alpha-4dfa5c20.0
@graphql-tools/webpack-loader@6.5.0-alpha-4dfa5c20.0
@graphql-tools/wrap@8.0.0-alpha-4dfa5c20.0