Merge branch 'tomas/main-tower-abci' (#2141)

* tomas/main-tower-abci:
  changelog: add #2141
  test/storage: fix block height read test
  refactor to use TM domain types
  set mempool buffer size to default Comet's mempool size
  deps: switch to last release of tower-abci

Author: tzemanovic

.changelog/unreleased/improvements/2141-improvements.md

@@ -0,0 +1,2 @@
+- Upgraded to upstream tower-abci version.
+  ([\#2141](https://github.com/anoma/namada/pull/2141))