This PR tackles the case of using the e2e application in a long lived testnet. The application continually saves snapshots (usually every 100 blocks) which after a while bloats the size of the application. This PR prunes older snapshots so that only the most recent 10 snapshots remain.
(cherry picked from commit 5703ae2fb3)
Co-authored-by: Callum Waters <cmwaters19@gmail.com>