Merge coverage outputs

Author: onurtemizkan

plugins/node/opentelemetry-instrumentation-mongodb/package.json

@@ -7,13 +7,13 @@
   "repository": "open-telemetry/opentelemetry-js-contrib",
   "scripts": {
     "docker:start": "docker run -e MONGODB_DB=opentelemetry-tests -e MONGODB_PORT=27017 -e MONGODB_HOST=127.0.0.1 -p 27017:27017 --rm mongo",
-    "test": "npm run test-v3 && npm run test-v4 && npm run test-v5-v6",
+    "test": "npm run test-v3 && npm run test-v4 && npm run test-v5-v6 && nyc merge .nyc_output ./coverage/coverage-final.json",
     "test-v3": "tav mongodb 3.7.4 npm run test-v3-run",
     "test-v4": "tav mongodb 4.17.0 npm run test-v4-run",
     "test-v5-v6": "tav mongodb 6.8.0 npm run test-v5-v6-run",
-    "test-v3-run": "mocha --require '@opentelemetry/contrib-test-utils' 'test/**/mongodb-v3.test.ts'",
-    "test-v4-run": "mocha --require '@opentelemetry/contrib-test-utils' 'test/mongodb-v4-v5-v6.metrics.test.ts' 'test/**/mongodb-v4.test.ts'",
-    "test-v5-v6-run": "mocha --require '@opentelemetry/contrib-test-utils' 'test/mongodb-v4-v5-v6.metrics.test.ts' 'test/**/mongodb-v5-v6.test.ts'",
+    "test-v3-run": "nyc --no-clean mocha --require '@opentelemetry/contrib-test-utils' 'test/**/mongodb-v3.test.ts'",
+    "test-v4-run": "nyc --no-clean mocha --require '@opentelemetry/contrib-test-utils' 'test/mongodb-v4-v5-v6.metrics.test.ts' 'test/**/mongodb-v4.test.ts'",
+    "test-v5-v6-run": "nyc --no-clean mocha --require '@opentelemetry/contrib-test-utils' 'test/mongodb-v4-v5-v6.metrics.test.ts' 'test/**/mongodb-v5-v6.test.ts'",
     "test-all-versions": "tav",
     "tdd": "npm run test-v5-v6-run -- --watch-extensions ts --watch",
     "clean": "rimraf build/*",