deps: dedupe and lockbump ethers, ethereumjs, web3

[legobeat]

PR description

Dedupes and performs lockfile bumps of packages in the ethers, ethereumjs, and web3 families.

Note that this implies a major upgrade of transitive bn.js from v4 to v5.

Related

• deps: dedupe runtime libraries #6191
• devDeps: deduplicate babel packages #6185
• chore: dedupe devDependencies and library packages #6188

Testing instructions

Documentation

• I thought about documentation and added the doc-change-required label to this PR if documentation updates are required.

Breaking changes and new features

• I have added any needed breaking-change and new-feature labels for the appropriate packages.

[haltman-at]

All this without changing any package.jsons, huh? Wow! Well if the tests are passing, I guess it's OK!

(We've still got multiple versions of ethers despite this, right? I seem to recall certain packages were using distinct major versions...)

[legobeat]

@haltman-at : Yup! This doesn't do any semver-violating changes so nothing changed there.

FWIW there is sill ethers@^4 used in contracts and interface-adapter while the rest of the usage looks to all be v5.

[legobeat]

FYI just added on 4372ee3 which dedupes the remaining @ethersproject/^5 duplicates.

[haltman-at]

Yeah, I remember there being a reason why contract is still on v4, although I don't remember offhand what it is. OTOH interface-adapter I didn't know about, I wonder if there's a reason for that one?

[gnidan]

Thank you again!