Upgrade Rust version to 1.80.1

Upgrade Rust version to ensure the CI build passes.

Author: mjgarton

datafusion-postgres/Cargo.toml

@@ -2,7 +2,7 @@
 name = "datafusion-postgres"
 version = "0.3.0"
 edition = "2021"
-rust-version = "1.79"
+rust-version = "1.80.1"
 description = "Exporting datafusion query engine with postgres wire protocol"
 authors = ["Ning Sun <[email protected]>"]
 license = "Apache-2.0"