Bump @azure/msal-node from 1.0.0-alpha.15 to 1.0.0-beta.0

Bumps [@azure/msal-node](https://github.com/AzureAD/microsoft-authentication-library-for-js) from 1.0.0-alpha.15 to 1.0.0-beta.0.
- [Release notes](https://github.com/AzureAD/microsoft-authentication-library-for-js/releases)
- [Commits](AzureAD/microsoft-authentication-library-for-js@msal-node-v.1.0.0-alpha.15...msal-node-v.1.0.0-beta.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -9,7 +9,7 @@
     "lint": "eslint ."
   },
   "dependencies": {
-    "@azure/msal-node": "^1.0.0-alpha.15",
+    "@azure/msal-node": "^1.0.0-beta.0",
     "@microsoft/microsoft-graph-client": "^2.1.1",
     "body-parser": "^1.19.0",
     "cross-fetch": "^3.0.6",