deps: switch to tower-abci branch with overloaded service handling

[tzemanovic]

Describe your changes

namada-net/tower-abci#12:

• added exponential backoff when a service overloaded
• peek requests in case a service call fails to be able to retry them - this avoids crashing CometBFT (it should be possible to shed query requests when the query service is overloaded, but at the moment the implementation doesn't distinguish this and shedding mempool requests does crash Comet)

Indicate on which release or other PRs this topic is based on

0.25.0

Checklist before merging to draft

• I have added a changelog
• Git history is in acceptable state

[tzemanovic]

this is to be rebased on #2141 with a rebased tower-abci error handling fix

[tzemanovic]

done with #2141 instead