Only download JS zip when integTest is running

[peterzhuamazon]

Signed-off-by: Peter Zhu [email protected]

Issue #, if available:
#333

Description of changes:
Only download JS zip when integTest is running

CheckList:

• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[codecov-commenter]

Codecov Report

Merging #334 (e911303) into main (6259f9a) will increase coverage by 0.19%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main     #334      +/-   ##
============================================
+ Coverage     76.60%   76.79%   +0.19%     
+ Complexity     2050     2049       -1     
============================================
  Files           253      253              
  Lines         11642    11642              
  Branches       1808     1808              
============================================
+ Hits           8918     8941      +23     
+ Misses         1753     1733      -20     
+ Partials        971      968       -3     

Impacted Files	Coverage Δ
...nt/indexstatemanagement/model/destination/Chime.kt	43.47% <0.00%> (-17.40%)	⬇️
...nt/indexstatemanagement/ManagedIndexCoordinator.kt	75.22% <0.00%> (-0.31%)	⬇️
...earch/indexmanagement/transform/model/Transform.kt	85.47% <0.00%> (ø)
.../opensearch/indexmanagement/rollup/model/Rollup.kt	86.97% <0.00%> (+0.93%)	⬆️
...nt/rollup/action/stop/TransportStopRollupAction.kt	77.64% <0.00%> (+1.17%)	⬆️
...ndexstatemanagement/IndexStateManagementHistory.kt	80.00% <0.00%> (+1.37%)	⬆️
.../rollup/action/start/TransportStartRollupAction.kt	75.29% <0.00%> (+3.52%)	⬆️
...statemanagement/model/destination/CustomWebhook.kt	95.71% <0.00%> (+28.57%)	⬆️

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[peterzhuamazon]

Interesting that bwc test success on my local while instantly fail in github actions.