chore: bump ethers to forked deps (#89)

Author: emizzle

ethers.nimble

@@ -1,4 +1,4 @@
-version = "0.9.0"
+version = "0.9.1"
 author = "Nim Ethers Authors"
 description = "library for interacting with Ethereum"
 license = "MIT"
@@ -8,7 +8,7 @@ requires "chronicles >= 0.10.3 & < 0.11.0"
 requires "chronos >= 4.0.0 & < 4.1.0"
 requires "contractabi >= 0.6.0 & < 0.7.0"
 requires "questionable >= 0.10.2 & < 0.11.0"
-requires "json_rpc >= 0.4.0 & < 0.5.0"
+requires "https://github.com/codex-storage/nim-json-rpc >= 0.5.0 & < 0.6.0"
 requires "serde >= 1.2.1 & < 1.3.0"
 requires "stint"
 requires "stew"