bump consensus spec version

Author: vedhavyas

crates/subspace-runtime/src/lib.rs

@@ -131,7 +131,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     spec_name: Cow::Borrowed("subspace"),
     impl_name: Cow::Borrowed("subspace"),
     authoring_version: 0,
-    spec_version: 6,
+    spec_version: 7,
     impl_version: 0,
     apis: RUNTIME_API_VERSIONS,
     transaction_version: 1,