bootstrap: Remove dependency on xattr

Extracting the Rust tarballs doesn't require this.

src/bootstrap/Cargo.lock

@@ -747,13 +747,12 @@ dependencies = [
 
 [[package]]
 name = "tar"
-version = "0.4.43"
+version = "0.4.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c65998313f8e17d0d553d28f91a0df93e4dbbbf770279c7bc21ca0f09ea1a1f6"
+checksum = "1d863878d212c87a19c1a610eb53bb01fe12951c0501cf5a0d65f724914a667a"
 dependencies = [
  "filetime",
  "libc",
- "xattr",
 ]
 
 [[package]]
@@ -1135,16 +1134,6 @@ dependencies = [
  "bitflags",
 ]
 
-[[package]]
-name = "xattr"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d65cbf2f12c15564212d48f4e3dfb87923d25d611f2aed18f4cb23f0413d89e"
-dependencies = [
- "libc",
- "rustix",
-]
-
 [[package]]
 name = "xz2"
 version = "0.1.7"

src/bootstrap/Cargo.toml

@@ -50,7 +50,7 @@ serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
 sha2 = "0.10"
-tar = "0.4"
+tar = { version = "0.4.44", default-features = false }
 termcolor = "1.4"
 toml = "0.5"
 walkdir = "2.4"