cache: update zstd to 0.6, disable legacy feature (#2592)

Cargo.lock

@@ -2959,18 +2959,18 @@ dependencies = [
 
 [[package]]
 name = "zstd"
-version = "0.5.4+zstd.1.4.7"
+version = "0.6.0+zstd.1.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69996ebdb1ba8b1517f61387a883857818a66c8a295f487b1ffd8fd9d2c82910"
+checksum = "d4e44664feba7f2f1a9f300c1f6157f2d1bfc3c15c6f3cf4beabf3f5abe9c237"
 dependencies = [
  "zstd-safe",
 ]
 
 [[package]]
 name = "zstd-safe"
-version = "2.0.6+zstd.1.4.7"
+version = "3.0.0+zstd.1.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98aa931fb69ecee256d44589d19754e61851ae4769bf963b385119b1cc37a49e"
+checksum = "d9447afcd795693ad59918c7bbffe42fdd6e467d708f3537e3dc14dc598c573f"
 dependencies = [
  "libc",
  "zstd-sys",
@@ -2978,9 +2978,9 @@ dependencies = [
 
 [[package]]
 name = "zstd-sys"
-version = "1.4.18+zstd.1.4.7"
+version = "1.4.19+zstd.1.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1e6e8778706838f43f771d80d37787cb2fe06dafe89dd3aebaf6721b9eaec81"
+checksum = "ec24a9273d24437afb8e71b16f3d9a5d569193cccdb7896213b59f552f387674"
 dependencies = [
  "cc",
  "glob",

crates/cache/Cargo.toml

@@ -18,7 +18,7 @@ log = { version = "0.4.8", default-features = false }
 serde = { version = "1.0.94", features = ["derive"] }
 sha2 = "0.9.0"
 toml = "0.5.5"
-zstd = "0.5"
+zstd = { version = "0.6", default-features = false }
 
 [target.'cfg(target_os = "windows")'.dependencies]
 winapi = "0.3.7"