Migrate to new version of gpapi, which supports downloading dexmetadata

Author: Hainish

Cargo.lock

@@ -14,7 +14,7 @@ reqwest = { version = "0.12", features = ["stream"] }
 futures-util = { version = "0.3", features = ["io"] }
 regex = "1.12"
 clap = { version = "4", features = ["derive"] }
-gpapi = "5"
+gpapi = "6"
 tokio-dl-stream-to-disk = { version = "1", features = ["sha256sum"] }
 tempfile = "3"
 dirs = "6"