Compress the json files while uploading/downloading from S3

[sara-02]

Since these files are downloaded everytime the service is brought up, it incurs a huge amount of data to be transferred in terms of the JSON files of the model. Compressing them will reduce the amount of data transferred.
As pointed out by @msrb

$ ls -lh kronos_dependency_maven.*
-rw-rw-r--. 1 msrb msrb  51M May 16 14:01 kronos_dependency_maven.json
-rw-rw-r--. 1 msrb msrb 6.2M May 16 14:02 kronos_dependency_maven.zip

[CermakM]

We might consider using Protocol Buffers for this ... here is a comparison of size w.r.t. JSON.