downgrade compiler_builtins

The outline-atomics support in compiler_builtins messed up and wasn't limited to linux only.
https://github.com/rust-lang/compiler-builtins/pull/532/files#r1249354225

Author: Noratrieb

std/Cargo.toml

@@ -18,7 +18,8 @@ panic_unwind = { path = "../panic_unwind", optional = true }
 panic_abort = { path = "../panic_abort" }
 core = { path = "../core", public = true }
 libc = { version = "0.2.146", default-features = false, features = ['rustc-dep-of-std'], public = true }
-compiler_builtins = { version = "0.1.93" }
+# FIXME(Nilstrieb): https://github.com/rust-lang/compiler-builtins/pull/532/files#r1249354225
+compiler_builtins = { version = "=0.1.93" }
 profiler_builtins = { path = "../profiler_builtins", optional = true }
 unwind = { path = "../unwind" }
 hashbrown = { version = "0.14", default-features = false, features = ['rustc-dep-of-std'] }