Add Commit-Based Artifact Download Support (opensearch-project#3736)

* Add Commit-Based Artifact Download Support and feature to only change code when corresponding code changes
Add feature to only change code when corresponding code changes
deleted files

Signed-off-by: Kai Huang <ahkcs@amazon.com>

* change file location and handle concurrence

Signed-off-by: Kai Huang <ahkcs@amazon.com>

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Signed-off-by: Kai Huang <ahkcs@amazon.com>

Author: ahkcs