Exclude .d.ts files #55

# ts-node-test\\node_modules\\ts-node\\src\\index.ts:1085
#           throw new TypeError(
#                 ^
# TypeError: Unable to require file: test\\foo.d.ts
# This is usually the result of a faulty configuration or import. Make sure there is a `.js`, `.json` or other executable extension with loader attached before `ts-node` available.
#     at getOutput (ts-node-test\\node_modules\\ts-node\\src\\index.ts:1085:17)
#     at Object.compile (ts-node-test\\node_modules\\ts-node\\src\\index.ts:1433:41)
#     at transformSource (ts-node-test\\node_modules\\ts-node\\src\\esm.ts:400:37)
#     at ts-node-test\\node_modules\\ts-node\\src\\esm.ts:278:53
#     at async addShortCircuitFlag (ts-node-test\\node_modules\\ts-node\\src\\esm.ts:409:15)
#     at async nextLoad (node:internal/modules/esm/loader:163:22)
#     at async ESMLoader.load (node:internal/modules/esm/loader:605:20)
#     at async ESMLoader.moduleProvider (node:internal/modules/esm/loader:457:11)
#     at async link (node:internal/modules/esm/module_job:68:21)
# Subtest: test\\foo.d.ts
not ok 1 - test\\foo.d.ts
  ---
  duration_ms: 889.4078
  failureType: 'testCodeFailure'
  exitCode: 1
  error: 'test failed'
  code: 'ERR_TEST_FAILURE'
  ...