Expose cache config to be able to configure all fields in GlobalConfig (#874)

Author: AdrianEddy

crates/cubecl-runtime/src/config/mod.rs

@@ -1,13 +1,14 @@
 /// Autotune config module.
 pub mod autotune;
+/// Cache config module.
+#[cfg(std_io)]
+pub mod cache;
 /// Compilation config module.
 pub mod compilation;
 /// Profiling config module.
 pub mod profiling;
 
 mod base;
-#[cfg(std_io)]
-pub(crate) mod cache;
 mod logger;
 
 pub use base::*;