dx: use soldeer for solidity dependencies

[sripwoud]

https://soldeer.xyz/
Related: semaphore-protocol/semaphore#800

[sripwoud]

Migration to soldeer readiness check:
We can migrate our packages to soldeer if all their dependencies are also available on soldeer
It would make the conf more complex and clunky to have a mix of deps coming from gitmodules (forge), node_modules (hardhat) and soldeer. So ideally everything would be downloaded from and uploaded to soldeer.

pkg	dep	available on https://soldeer.xyz/	request to publish to soldeer
excubiae	eas-contracts	❌	ethereum-attestation-service/eas-contracts#146
excubiae	openzeppelin/contracts	✅ yes	NA
excubiae	semaphore-protcol/contracts	❌	semaphore-protocol/semaphore#800
lean-imt	poseidon-solidity	✅ yes	NA
imt	poseidon-solidity	✅ yes	NA
lazy-imt	poseidon-solidity	✅ yes	NA
lazy-tower	poseidon-solidity	✅ yes	NA

[cedoor]

@sripwoud thanks very much for that table!

I didn't know poseidon-solidity was on Soldeer. @vimwitch did you publish it?

[sripwoud]

Err no that was me 😅 (i wanted to test soldeer quickly), but I link to your repo @vimwitch
You could take over my soldeer account if you want (but the UI does not seem to have a feature to update the email address yet....)