scripted-diff: Use new FUZZ_TARGET macro everywhere

-BEGIN VERIFY SCRIPT-

  ren() { sed --regexp-extended -i "s|$1|$2|g" $(git grep -l --extended-regexp "$1"); }

  # Replace FUZZ_TARGET_INIT
  ren 'FUZZ_TARGET_INIT\((.+), (.+)\)' 'FUZZ_TARGET(\1, .init = \2)'

  # Delete unused FUZZ_TARGET_INIT
  sed -i -e '37,39d' src/test/fuzz/fuzz.h

-END VERIFY SCRIPT-

src/test/fuzz/mini_miner.cpp

@@ -30,7 +30,7 @@ void initialize_miner()
 }
 
 // Test that the MiniMiner can run with various outpoints and feerates.
-FUZZ_TARGET_INIT(mini_miner, initialize_miner)
+FUZZ_TARGET(mini_miner, .init = initialize_miner)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     CTxMemPool pool{CTxMemPool::Options{}};
@@ -106,7 +106,7 @@ FUZZ_TARGET_INIT(mini_miner, initialize_miner)
 }
 
 // Test that MiniMiner and BlockAssembler build the same block given the same transactions and constraints.
-FUZZ_TARGET_INIT(mini_miner_selection, initialize_miner)
+FUZZ_TARGET(mini_miner_selection, .init = initialize_miner)
 {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     CTxMemPool pool{CTxMemPool::Options{}};