bump rustc-build-sysroot version

Author: RalfJung

src/tools/miri/cargo-miri/Cargo.lock

@@ -190,9 +190,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-build-sysroot"
-version = "0.5.3"
+version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2471f8f296262437d7e848e527b4210b44a96e53a3b4435b890227ce3e6da106"
+checksum = "d6d984a9db43148467059309bd1e5ad577085162f695d9fe2cf3543aeb25cd38"
 dependencies = [
  "anyhow",
  "rustc_version",

src/tools/miri/cargo-miri/Cargo.toml

@@ -18,7 +18,7 @@ directories = "5"
 rustc_version = "0.4"
 serde_json = "1.0.40"
 cargo_metadata = "0.18.0"
-rustc-build-sysroot = "0.5.3"
+rustc-build-sysroot = "0.5.4"
 
 # Enable some feature flags that dev-dependencies need but dependencies
 # do not.  This makes `./miri install` after `./miri build` faster.