scripted-diff: drop config/ subdir for bitcoin-config.h, rename to bitcoin-build-config.h

Follow-up for PR #30856, commit 0dd66251.

-BEGIN VERIFY SCRIPT-
sed -i "s|config/bitcoin-config\.h|bitcoin-build-config.h|g" $(git grep -l config/bitcoin-config\.h)
sed -i "s|bitcoin-config\.h|bitcoin-build-config.h|g" $(git grep -l "bitcoin-config\.h" ./src ./test ./cmake)
git mv ./cmake/bitcoin-config.h.in ./cmake/bitcoin-build-config.h.in
-END VERIFY SCRIPT-

src/wallet/test/db_tests.cpp

@@ -2,7 +2,7 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include <config/bitcoin-config.h> // IWYU pragma: keep
+#include <bitcoin-build-config.h> // IWYU pragma: keep
 
 #include <boost/test/unit_test.hpp>
 

src/wallet/test/fuzz/wallet_bdb_parser.cpp

@@ -2,7 +2,7 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include <config/bitcoin-config.h> // IWYU pragma: keep
+#include <bitcoin-build-config.h> // IWYU pragma: keep
 #include <test/fuzz/FuzzedDataProvider.h>
 #include <test/fuzz/fuzz.h>
 #include <test/fuzz/util.h>

src/wallet/test/util.h

@@ -5,7 +5,7 @@
 #ifndef BITCOIN_WALLET_TEST_UTIL_H
 #define BITCOIN_WALLET_TEST_UTIL_H
 
-#include <config/bitcoin-config.h> // IWYU pragma: keep
+#include <bitcoin-build-config.h> // IWYU pragma: keep
 
 #include <addresstype.h>
 #include <wallet/db.h>