updated jest config to typescript.

set type: module in package.json and updated configs accordingly

Author: shalarewicz

.eslintrc.json

@@ -24,5 +24,5 @@
             "error"
         ]
     }, 
-    "ignorePatterns": ["jest.config.js"]
+    "ignorePatterns": ["jest.*"]
 }

jest.config.js

@@ -0,0 +1,12 @@
+import type { Config } from '@jest/types';
+
+const config: Config.InitialOptions = {
+    verbose: true,
+    roots: ['./test'],
+    preset: 'ts-jest',
+    testEnvironment: 'node',
+    moduleFileExtensions: ['js', 'ts'],
+    setupFilesAfterEnv: ['./jest.setup.redis-mock.js'],
+};
+
+export default config;