fix: change permissions in dockerfile

[shree-iyengar-dls]

Fixes #1454

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.22%. Comparing base (9f15b40) to head (6ead2ea).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1493   +/-   ##
=======================================
  Coverage   95.22%   95.22%           
=======================================
  Files          43       43           
  Lines        3144     3144           
=======================================
  Hits         2994     2994           
  Misses        150      150           

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