Allow missing functions when checking the new runtime's version (#5741)

substrate/Cargo.lock

@@ -1529,6 +1529,7 @@ dependencies = [
  "frame-support",
  "parity-scale-codec",
  "pretty_assertions",
+ "rustversion",
  "serde",
  "sp-core",
  "sp-inherents",
@@ -7643,6 +7644,7 @@ name = "sp-runtime-interface-test"
 version = "2.0.0-dev"
 dependencies = [
  "sc-executor",
+ "sp-core",
  "sp-io",
  "sp-runtime",
  "sp-runtime-interface",