chore: fix config name

Author: josdejong

package.json

@@ -155,7 +155,7 @@
     "test:all": "npm run test:src && npm run test:generated && npm run test:node && npm run test:types",
     "test:browser": "karma start test/browser-test-config/local-karma.js",
     "test:browserstack": "karma start test/browser-test-config/browserstack-karma.js",
-    "test:lambdatest": "karma start test/browser-test-config/lt_karma.js",
+    "test:lambdatest": "karma start test/browser-test-config/lambdatest-karma.js",
     "test:types": " tsc -p ./tsconfig.json && node --loader ts-node/esm ./test/typescript-tests/testTypes.ts",
     "coverage": "c8 --reporter=lcov --reporter=text-summary mocha test/unit-tests && echo \"\nDetailed coverage report is available at ./coverage/lcov-report/index.html\"",
     "prepublishOnly": "npm run test:all && npm run lint",