feat: Update zstd requirement from 0.9 to 0.12 (#24)

Author: ovr

parquet/Cargo.toml

@@ -38,7 +38,7 @@ snap = { version = "1.0", optional = true }
 brotli = { version = "3.3", optional = true }
 flate2 = { version = "1.0", optional = true }
 lz4 = { version = "1.23", optional = true }
-zstd = { version = "0.9", optional = true }
+zstd = { version = "0.12", optional = true }
 chrono = "0.4"
 num-bigint = "0.4"
 arrow = { path = "../arrow", version = "5.0.0", optional = true }