Use the new cargo resolver

tomhoule · tomhoule · commit 4b559010dc98 · 2021-06-25T10:00:49.000+02:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,4 +1,5 @@
 [workspace]
+resolver = "2"
 members = [
     "graphql_client",
     "graphql_client_cli",
