test: define ts-jest config inside transform

Refs: kulshekhar/ts-jest#3780

Author: trivikr

jest.config.base.js

@@ -3,13 +3,14 @@ const { compilerOptions } = require("@tsconfig/recommended/tsconfig.json");
 module.exports = {
   preset: "ts-jest",
   testMatch: ["**/*.spec.ts", "!**/*.browser.spec.ts", "!**/*.integ.spec.ts"],
-  globals: {
-    "ts-jest": {
-      tsconfig: {
+  transform: {
+    "^.+\\.tsx?$": [
+      "ts-jest",
+      {
         ...compilerOptions,
         noImplicitAny: false,
         strictNullChecks: false,
       },
-    },
+    ],
   },
 };