fuzz: Link all targets once

src/test/fuzz/net.cpp

@@ -19,12 +19,12 @@
 #include <string>
 #include <vector>
 
-void initialize()
+void initialize_net()
 {
     static const BasicTestingSetup basic_testing_setup;
 }
 
-void test_one_input(const std::vector<uint8_t>& buffer)
+FUZZ_TARGET_INIT(net, initialize_net)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());