fix: npm install in envs with stricter policies

[aaudzei]

Explicitly sets policy allowing post install scripts to be executed for selected packages.
It is required to fix error that some stricter envs may experience:

FAIL test/src/pat-auth.test.ts
  ● Test suite failed to run

    libsecret-1.so.0: cannot open shared object file: No such file or directory

      4 | import { AzureCliCredential, ChainedTokenCredential, DefaultAzureCredential, TokenCredential } from "@azure/identity";
      5 | import { AccountInfo, AuthenticationResult, PublicClientApplication } from "@azure/msal-node";
    > 6 | import { NativeBrokerPlugin } from "@azure/msal-node-extensions";
        | ^
      7 | import open from "open";
      8 | import { logger } from "./logger.js";
      9 |

      at CjsLoader.loadModule (node_modules/jest-runtime/build/index.js:312:29)
      at Object.<anonymous> (node_modules/keytar/lib/keytar.js:1:14)
      at Object.<anonymous> (node_modules/@azure/msal-node-extensions/lib/msal-node-extensions.cjs:9:14)
      at Object.require (src/auth.ts:6:1)
      at Object.<anonymous> (test/src/pat-auth.test.ts:31:1)

✅ PR Checklist

• I have read the contribution guidelines
• I have read the code of conduct guidelines
• Title of the pull request is clear and informative.
• 👌 Code hygiene
• 🔭 Telemetry added, updated, or N/A
• 📄 Documentation added, updated, or N/A
• 🛡️ Automated tests added, or N/A

🧪 How did you test it?

Reproduced on a machine not executing post install scripts by default. Applied diff and retried.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

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