rocksdb 7.4.4 doesn't build with GCC 13

[fmorency]

See facebook/rocksdb#11157

Workaround: build using clang and libc++

user.bazel

build --repo_env=CC=clang --linkopt=-fuse-ld=lld
build --repo_env='BAZEL_CXXOPTS=-std=c++17:-stdlib=libc++'
build --repo_env='BAZEL_LINKLIBS=-lc++:-lm'