Speak with Truffle about bumping version of `@ensdomains/ensjs` to 3.0.0 (alpha) in `@truffle/encoder`

The only outstanding instance of `ethers` in the extensions's dependency graph is from `@ensdomains/ensjs` v2.1.0 via `@truffle/encoder` / `@truffle/decoder`. `@truffle/decoder` is used by the transactions-decoding component, and probably can't be easily replaced but [@ensdomains/ensjs has an alpha version (3.0.0)](https://www.npmjs.com/package/@ensdomains/ensjs/v/3.0.0-alpha.41) which removes it's dependency on ethers so perhaps we ask Truffle to update this dependency to use the alpha version of @ensdomains/ensjs