CICD: add missing AWS credential configuration to e2e_subs

[onetechnical]

Summary

The upload of test data was broken because AWS Credentials were not configured. This fixes that.

Test Plan

Tested on a fork to verify that it works.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 50.40%. Comparing base (71750c2) to head (94f88ec).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6368      +/-   ##
==========================================
+ Coverage   49.10%   50.40%   +1.30%     
==========================================
  Files         653      653              
  Lines      110377   110974     +597     
==========================================
+ Hits        54199    55935    +1736     
+ Misses      53243    52169    -1074     
+ Partials     2935     2870      -65     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.