build(deps-dev): bump @azure/msal-browser from 2.38.0 to 4.12.0

Bumps [@azure/msal-browser](https://github.com/AzureAD/microsoft-authentication-library-for-js) from 2.38.0 to 4.12.0.
- [Release notes](https://github.com/AzureAD/microsoft-authentication-library-for-js/releases)
- [Commits](AzureAD/microsoft-authentication-library-for-js@msal-browser-v2.38.0...msal-browser-v4.12.0)

---
updated-dependencies:
- dependency-name: "@azure/msal-browser"
  dependency-version: 4.12.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -87,7 +87,7 @@
     },
     "devDependencies": {
         "@azure/identity": "^4.0.0",
-        "@azure/msal-browser": "^2.15.0",
+        "@azure/msal-browser": "^4.12.0",
         "@babel/core": "^7.12.10",
         "@babel/plugin-transform-runtime": "^7.12.10",
         "@babel/preset-env": "^7.12.11",