ci: Use DEBUG=1 in depends for MSAN jobs

Followup to bitcoin#27448, which was deffered, as it produces bitcoin#27448 and
another similar issue in sqlite, see comment here:
bitcoin#27448 (comment).

Author: fanquake

ci/test/00_setup_env_native_fuzz_with_msan.sh

@@ -15,7 +15,7 @@ export MSAN_AND_LIBCXX_FLAGS="${MSAN_FLAGS} ${LIBCXX_FLAGS}"
 export CONTAINER_NAME="ci_native_fuzz_msan"
 export PACKAGES="ninja-build"
 # BDB generates false-positives and will be removed in future
-export DEP_OPTS="NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
+export DEP_OPTS="DEBUG=1 NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export GOAL="install"
 export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer,memory --disable-hardening --with-asm=no CFLAGS='${MSAN_FLAGS}' CPPFLAGS='-DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export USE_MEMORY_SANITIZER="true"

ci/test/00_setup_env_native_msan.sh

@@ -15,7 +15,7 @@ export MSAN_AND_LIBCXX_FLAGS="${MSAN_FLAGS} ${LIBCXX_FLAGS}"
 export CONTAINER_NAME="ci_native_msan"
 export PACKAGES="ninja-build"
 # BDB generates false-positives and will be removed in future
-export DEP_OPTS="NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
+export DEP_OPTS="DEBUG=1 NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export GOAL="install"
 export BITCOIN_CONFIG="--with-sanitizers=memory --disable-hardening --with-asm=no CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export USE_MEMORY_SANITIZER="true"