[Backport 3.1] Updates build.gradle to conditionally download security certificates

[opensearch-trigger-bot]

Backport f5e9ff7 from #1517.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.59%. Comparing base (b25f913) to head (b718924).
Report is 1 commits behind head on 3.1.

Additional details and impacted files

@@             Coverage Diff              @@
##                3.1    #1519      +/-   ##
============================================
- Coverage     81.60%   81.59%   -0.02%     
+ Complexity     6026     6024       -2     
============================================
  Files           536      536              
  Lines         24377    24377              
  Branches       2488     2488              
============================================
- Hits          19894    19890       -4     
- Misses         3240     3244       +4     
  Partials       1243     1243              

Flag	Coverage Δ
plugin	81.59% <ø> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

see 8 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.