chore: tweak dependencies

Author: AuHau

ethers.nimble

@@ -8,10 +8,10 @@ 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 "https://github.com/codex-storage/nim-json-rpc >= 0.5.0 & < 0.6.0"
+requires "json_rpc >= 0.5.0 & < 0.6.0"
 requires "serde >= 1.2.1 & < 1.3.0"
-requires "https://github.com/codex-storage/nim-stint-versioned >= 1.0.0 & < 2.0.0"
-requires "https://github.com/codex-storage/nim-stew-versioned >= 1.0.0 & < 2.0.0"
+requires "stint >= 0.8.0 & < 0.9.0"
+requires "stew >= 0.2.0 & < 0.3.0"
 requires "https://github.com/codex-storage/nim-eth-versioned >= 1.0.0 & < 2.0.0"
 
 task test, "Run the test suite":