Switch from FIFO to prioritized mempool

[rootulp]

Context

We'd like validators to use the prioritized mempool see celestiaorg/celestia-app#590 (comment)

Problem

Arabica (and potentially most validators on Mamaki) use the default FIFO mempool.

Proposal

We'd like our testnets to be representative of the parameters used on mainnet so we should update the Arabica validator to use the prioritized mempool (i.e. version: "v1"). If possible, we should also update any default configuration so that as many validators as possible on Mamaki update to using the prioritized mempool.

[evan-forbes]

@rootulp should we move this to a different repo given that the defaults are not picked here? or is this issue indicating something else?

[rootulp]

This issue was intended to override the default config on validators for networks like Arabica / Mamaki. If we still want this, which other repo? It doesn't look like https://github.com/celestiaorg/celestia-sre contains configs for validators either.

If we don't want this, we can close this issue and update the default config in celestia-app and wait until the networks upgrade to versions of celestia-app cut with the default changed.

[evan-forbes]

imo we can close since we have celestiaorg/celestia-app#1008

[evan-forbes]

oh I see, we'd close this issue after we update the arabica validator

[rootulp]

Yea, I'm okay with closing this given we already merged celestiaorg/celestia-app#1008
Since this issue isn't in a repo we maintain, feel free to re-open and transfer if you want to track it.