feat: add set_network_active RPC

Author: shaojunda

lib/ckb/api.rb

@@ -354,10 +354,17 @@ def clear_tx_pool
       rpc.clear_tx_pool
     end
 
+    # @return sync_state [SyncState]
     def sync_state
       Types::SyncState.from_h(rpc.sync_state)
     end
 
+    # @param state [Boolean]
+    # @return nil
+    def set_network_active(state)
+      rpc.set_network_active(state)
+    end
+
     def inspect
       "\#<API@#{rpc.uri}>"
     end

spec/ckb/api_spec.rb

@@ -364,4 +364,9 @@
     result = api.sync_state
     expect(result).to be_a(Types::SyncState)
   end
+
+  it "set_network_active should return nil" do
+    result = api.set_network_active(true)
+    expect(result).to be_nil
+  end
 end