Bump libdwarf to v0.12.0

Author: jeremy-rifkin

cmake/OptionVariables.cmake

@@ -182,7 +182,7 @@ option(CPPTRACE_UNPREFIXED_TRY_CATCH "" OFF)
 option(CPPTRACE_USE_EXTERNAL_GTEST "" OFF)
 set(CPPTRACE_ZSTD_URL "https://github.com/facebook/zstd/releases/download/v1.5.7/zstd-1.5.7.tar.gz" CACHE STRING "")
 set(CPPTRACE_LIBDWARF_REPO "https://github.com/jeremy-rifkin/libdwarf-lite.git" CACHE STRING "")
-set(CPPTRACE_LIBDWARF_TAG "fe09ca800b988e2ff21225ac5e7468ceade2a30e" CACHE STRING "") # v0.11.1
+set(CPPTRACE_LIBDWARF_TAG "5e71a74491dddc231664bbcd6a8cf8a8643918e9" CACHE STRING "") # v0.12.0
 set(CPPTRACE_LIBDWARF_SHALLOW "1" CACHE STRING "")
 option(CPPTRACE_PROVIDE_EXPORT_SET "" ON)
 option(CPPTRACE_PROVIDE_EXPORT_SET_FOR_LIBDWARF "" OFF)