chord: update rust optimizer

[emidev98]

This PR fix the build process for npx terrain deploy counter --signer validator due breaking changes related the cosmwasm/rust-optimizer:0.12.3 using cargo 1.55 with the following error log:

Building contract in /code ...
 Downloading crates ...
error: failed to download `uint v0.9.3`

Caused by:
  unable to get packages from source

Caused by:
  failed to parse manifest at `/usr/local/cargo/registry/src/github.com-1ecc6299db9ec823/uint-0.9.3/Cargo.toml`

Caused by:
  feature `edition2021` is required
The solution is to check the docker image rust-optimizer:0.12.3 (validate that cargo version is 1.55) and upgrade to the [new proposed image has the correct version 1.58.1](https://hub.docker.com/layers/rust-optimizer/cosmwasm/rust-optimizer/0.12.5/images/sha256-c0b7f1e79b3fc82bb49cc6330d804fddfc6c5adc43e83b57acea512318fddda4?context=explore). So in this case I upgraded CosmWasm/rust-optimizer from 0.16 to [1.0-beta6](https://github.com/InterWasm/cw-template/compare/v0.6.0...1.0-beta6#diff-2e9d962a08321605940b5a657135052fbcef87b5e360662bb527c96d9a615542R39) where the lib is already upgraded.

Instead of executing the cargo run-script optimize we execute the direct command updating rust-optimizer from 0.12.3 to 0.12.5

[octalmage]

Looks sick! Thanks man.