chore: Fixed Vulnerabilities in dependencies (#77)

Summary:

There were 23 security vulnerabilities in the dependencies. I brought them down to 3 medium risk ones. It appears to be difficult to bring it down to zero without forcing resolutions. I recommend to merge this PR first and then try fixing the remaining 3 later.

Author: zashraf1985

package.json

@@ -41,7 +41,7 @@
     "@types/enzyme": "^3.1.15",
     "@types/enzyme-adapter-react-16": "^1.0.3",
     "@types/hoist-non-react-statics": "^3.3.1",
-    "@types/jest": "^23.3.12",
+    "@types/jest": "^26.0.14",
     "@types/prop-types": "^15.5.6",
     "@types/react": "^16.7.18",
     "@types/react-dom": "^16.9.5",
@@ -54,7 +54,7 @@
     "eslint-plugin-prettier": "^3.1.2",
     "eslint-plugin-react": "^7.19.0",
     "eslint-plugin-react-hooks": "^4.1.0",
-    "jest": "^23.6.0",
+    "jest": "^26.5.2",
     "prettier": "1.19.1",
     "react": "^16.8.0",
     "react-dom": "^16.8.0",
@@ -63,8 +63,8 @@
     "rollup-plugin-node-resolve": "^4.0.0",
     "rollup-plugin-replace": "^2.1.0",
     "rollup-plugin-typescript2": "^0.18.1",
-    "rollup-plugin-uglify": "^6.0.1",
-    "ts-jest": "^23.10.5",
+    "rollup-plugin-uglify": "^6.0.4",
+    "ts-jest": "^26.4.1",
     "tslib": "^1.9.3",
     "typescript": "3.5.1"
   }

src/client.spec.ts

@@ -81,7 +81,7 @@ describe('ReactSDKClient', () => {
   it('provides access to the underlying client', () => {
     const instance = createInstance(config);
     expect(createInstanceSpy).toBeCalledTimes(1);
-    expect(createInstanceSpy.mock.results[0].isThrow).toBe(false);
+    expect(createInstanceSpy.mock.results[0].type).toBe('return');
     expect(createInstanceSpy.mock.results[0].value).toBe(instance.client);
   });