[Test] increase the wait time after transform job triggered

[bowenlan-amzn]

Issue #, if available:

Description of changes:

CheckList:

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[codecov]

Codecov Report

Merging #999 (e96af4a) into main (3ddd75a) will increase coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main     #999      +/-   ##
============================================
+ Coverage     66.11%   66.15%   +0.03%     
- Complexity     2406     2409       +3     
============================================
  Files           366      366              
  Lines         16365    16365              
  Branches       2346     2346              
============================================
+ Hits          10820    10826       +6     
+ Misses         4424     4421       -3     
+ Partials       1121     1118       -3     

see 10 files with indirect coverage changes

[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Navigate to the root of your repository
cd $(git rev-parse --show-toplevel)
# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/index-management/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/index-management/backport-2.x
# Create a new branch
git switch --create backport/backport-999-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 2241a292755466f4a29b0a38f7606f3f9be57c3d
# Push it to GitHub
git push --set-upstream origin backport/backport-999-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/index-management/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-999-to-2.x.