fix: reverted rust version to 1.83, due to some GitHub runners still not supporting 1.84

Author: pjox

Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 authors = ["Pedro Ortiz Suarez <pedro@commoncrawl.org>"]
 description = "A polite and user-friendly downloader for Common Crawl data."
 license = "MIT OR Apache-2.0"
-rust-version = "1.84"
+rust-version = "1.83"
 readme = "README.md"
 homepage = "https://commoncrawl.org"
 repository = "https://github.com/commoncrawl/cc-downloader"