Fixing vulnerabilities issues

package.json

@@ -1,6 +1,6 @@
 {
   "name": "aws-event-stream",
-  "version": "1.2.6",
+  "version": "1.2.7",
   "description": "A simple and fast EventStore for AWS.",
   "author": "Rodrigo Pinheiro de Almeida <[email protected]>",
   "license": "MIT",
@@ -28,7 +28,7 @@
     "test:unit": "jest --config ./test/jest.config.js --coverage --silent test/unit",
     "test:watch": "jest --config ./test/jest.config.js --watch --silent test/unit",
     "test:coverage": "nyc npm test",
-    "test:mutation": "stryker run ./test/stryker.conf.js",
+    "test:mutation": "stryker run ./test/stryker.conf.json",
     "stryker:init": "stryker init",
     "tsc": "tsc"
   },
@@ -101,4 +101,4 @@
   "publishConfig": {
     "access": "public"
   }
-}
+}

test/stryker.conf.js

@@ -1,19 +1,15 @@
-module.exports = function (config) {
-  config.set({
-    mutator: 'typescript',
-    packageManager: 'npm',
-    reporters: ['html', 'clear-text', 'progress'],
-    testRunner: 'jest',
-    jest: {
-      projectType: 'custom',
-      config: require('./jest.config-unit.js'),
-      enableFindRelatedTests: true,
-    },
-    transpilers: [],
-    coverageAnalysis: 'off',
-    tsconfigFile: 'tsconfig-stryker.json',
-    mutate: ['src/**/*.ts'],
-    thresholds: { break: 65 },
-    timeoutMS: 35000
-  });
+module.exports = {
+  packageManager: 'npm',
+  reporters: ['html', 'clear-text', 'progress'],
+  testRunner: 'jest',
+  jest: {
+    projectType: 'custom',
+    config: require('./jest.config-unit.js'),
+    enableFindRelatedTests: true,
+  },
+  coverageAnalysis: 'off',
+  tsconfigFile: 'tsconfig-stryker.json',
+  mutate: ['src/**/*.ts'],
+  thresholds: { break: 65 },
+  timeoutMS: 35000
 };