Backport: Turbopack: update mimalloc (#81993) (#82166)

We're heard about significant real-world reductions in memory usage from
this change in canary. It seem relatively low-risk, so IMO we should
backport it.

Original PR: #81993

Co-authored-by: Tobias Koppers <[email protected]>

Author: bgw

Cargo.lock

@@ -10,10 +10,10 @@ autobenches = false
 bench = false
 
 [target.'cfg(not(any(target_os = "linux", target_family = "wasm", target_env = "musl")))'.dependencies]
-mimalloc = { version = "0.1.42", features = [], optional = true }
+mimalloc = { version = "0.1.47", features = [], optional = true }
 
 [target.'cfg(all(target_os = "linux", not(any(target_family = "wasm", target_env = "musl"))))'.dependencies]
-mimalloc = { version = "0.1.42", features = [
+mimalloc = { version = "0.1.47", features = [
   "local_dynamic_tls",
 ], optional = true }