Make it possible to instantiate AlchemyProvider for more chains. #3811
Description
Describe the Feature
When creating the AlchemyProvider using this call new ethers.AlchemyProvider(chainId, apiKey) with the chainId being on of mainnet and testnet of Arbitrum(42161, 421613) and Optimism(10, 420) and the testnet for Polygon(80001) it throws unsupported network (argument="network", value="unknown", code=INVALID_ARGUMENT, version=6.0.5)
Code Example
No response