Potential fix for code scanning alert no. 10: Workflow does not contain permissions

[RaviKumarGubbala]

Potential fix for https://github.com/arup-group/github-action-benchmark/security/code-scanning/10

To fix the problem, a permissions block should be added to restrict the GITHUB_TOKEN access to only what is required for the job. Since the workflow uses actions that only need to clone the repository (via actions/checkout) and validate typings (with typesafegithub/github-actions-typing), the job only requires read access to repository contents. The best way to fix is to insert permissions: contents: read at the job level (directly under validate-typings:), so it's clear that only this job is affected and you are explicitly restricting permissions.
Change needed:

• Edit .github/workflows/validate-action-typings.yml
• Insert under validate-typings: (after line 11):

  permissions:
    contents: read

No new methods or imports are needed.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.14%. Comparing base (a2c64ea) to head (347d530).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #20   +/-   ##
=======================================
  Coverage   89.14%   89.14%           
=======================================
  Files          16       16           
  Lines         949      949           
  Branches      200      200           
=======================================
  Hits          846      846           
- Misses         99      103    +4     
+ Partials        4        0    -4     

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