Coverage fails on ES module imports in TS files

[wzoom]

Describe the bug

Trying to run CLI coverage on TS codebase reports "Cannot use import statement outside a module" although TS is supported according to docs.

To Reproduce

$ graphql-inspector coverage src/gql/**/*.ts src/gql/schema.graphql 
Error: Unable to load from file "/Users/wzoom/.../src/gql/dao/convertAppFromApi.test.ts": Cannot use import statement outside a module
    at tryToLoadFromExport (/Users/wzoom/.config/yarn/global/node_modules/@graphql-tools/code-file-loader/index.cjs.js:143:15)
    at async CodeFileLoader.load (/Users/wzoom/.config/yarn/global/node_modules/@graphql-tools/code-file-loader/index.cjs.js:230:32)
    at async loadFile (/Users/wzoom/.config/yarn/global/node_modules/@graphql-tools/load/index.cjs.js:48:24)
    at async /Users/wzoom/.config/yarn/global/node_modules/@graphql-tools/load/index.cjs.js:425:24

All the TS files use standard ES2015 import syntax:
e.g. import convertAppFromApi from './convertAppFromApi';

Expected behavior

The coverage should be shown, the script should not fail.

Environment:

• OS: macOS 10.15
• @graphql-inspector/...: 2.1.0
• graphql: 15.3.0
• NodeJS: 14.6.0 (tried also 12.16.2)

Additional context

Related Issue:
ardatan/graphql-tools#913