tweak smoke test batch dept. amount, and data size

[istae]

• the min batch depth is now 24
• make the smoke test run for 30 days
• make the amount enough for a week
• raise the data size to 50 mb
• change testnet. bee gateway. and dev-bee-gateway

[istae]

the smoke test will now use existing mutable batches or create one if one does not exists. the data size will be 50mb

[istae]

a new beekeeper version has to be released and all jobs restarted