* chore(core): remove ethers dep
* chore(providers): remove ethers dep
tests using higher-rank crates are temporarily disabled
* chore(middleware): remove ethers dep and move tests over from providers
* chore(signers): remove ethers dep
* fix(contracts): correctly determine ethers sub-crates & remove ethers
* fix: re-enable tests for all members
* fix: make contract compile without middleware dep
move over the test using middleware to ethers-middleware
* chore: cargo fmt
* chore(contract): add missing import
* WIP
* WIP
* fix(middleware): use rustls as dev dep
* chore: cargo fmt
* fix: use different key for nonce manager to avoid nonce conflicts
* chore: fix celo test ported over to middlewares
the test had the same private key with an existing middleware test,
causing potential nonce reuses
it now also uses a different storage contract, so we had to change
it to use u256 instead of string
* fix(middleware): enable contracts/celo feature
* chore: ignore non-eip2718 txs to rinkeby
38c7f5030f