chore: try to fix codecov (#1439)

package.json

@@ -32,7 +32,7 @@
     "compile": "tsc -v && tsc -p . && copyfiles src/apis/**/README.md src/apis/**/package.json build",
     "build-tools": "tsc -p tsconfig.tools.json",
     "clean": "gts clean",
-    "codecov": "nyc --cache mocha build/test -t 10000 -S -R spec && nyc report --reporter=html",
+    "codecov": "nyc report && codecov -f .coverage/*.json",
     "fix": "eslint --fix 'samples/**/*.js' && prettier --write samples/**/*.js && gts fix",
     "pregenerate": "npm run build-tools",
     "generate": "node build/src/generator/generate.js",