bump lz4_flex dependency to 0.11 (#5067)

Cargo.lock

@@ -1242,9 +1242,9 @@ dependencies = [
 
 [[package]]
 name = "lz4_flex"
-version = "0.9.5"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a8cbbb2831780bc3b9c15a41f5b49222ef756b6730a95f3decfdd15903eb5a3"
+checksum = "3ea9b256699eda7b0387ffbc776dd625e28bde3918446381781245b7a50349d8"
 dependencies = [
  "twox-hash",
 ]

compiler/core/Cargo.toml

@@ -16,4 +16,4 @@ malachite-bigint = { workspace = true }
 num-complex = { workspace = true }
 serde = { version = "1.0.133", optional = true, default-features = false, features = ["derive"] }
 
-lz4_flex = "0.9.2"
+lz4_flex = "0.11"