Upgrade minimum Rust version to 1.83 (#9815)

This reverts commit 6cc7a560f7 to reapply
#9511 since we've disabled ppc64le-musl per #9793

crates/uv-scripts/src/lib.rs

@@ -350,7 +350,7 @@ impl ScriptTag {
         let mut lines = contents.lines();
 
         // Ensure that the first line is exactly `# /// script`.
-        if !lines.next().is_some_and(|line| line == "# /// script") {
+        if lines.next().is_none_or(|line| line != "# /// script") {
             return Ok(None);
         }