Fix CI issues: rustfmt and compiletest stderr update

- Fix rustfmt formatting in codegen_cx/mod.rs
- Update expected stderr for sampled_image_rect_query_size_lod_err test

Author: zmr-233

crates/rustc_codegen_spirv/src/codegen_cx/mod.rs

@@ -339,11 +339,14 @@ impl CodegenArgs {
     pub fn from_session(sess: &Session) -> Self {
         // Split comma-separated arguments within each llvm_args entry
         // This handles cases like "--disassemble-fn=foo,--allow-fragment-no-output"
-        let expanded_args: Vec<String> = sess.opts.cg.llvm_args
+        let expanded_args: Vec<String> = sess
+            .opts
+            .cg
+            .llvm_args
             .iter()
             .flat_map(|arg| arg.split(',').map(|s| s.to_string()))
             .collect();
-        
+
         match CodegenArgs::parse(&expanded_args) {
             Ok(ok) => ok,
             Err(err) => sess

tests/compiletests/ui/image/query/sampled_image_rect_query_size_lod_err.stderr

@@ -1,7 +1,7 @@
 error[E0277]: the trait bound `Image<f32, 4, 2, 0, 0, 1, 0, 4>: HasQuerySizeLod` is not satisfied
-    --> $DIR/sampled_image_rect_query_size_lod_err.rs:21:28
+    --> $DIR/sampled_image_rect_query_size_lod_err.rs:22:28
      |
-21   |     *output = rect_sampled.query_size_lod(0);
+22   |     *output = rect_sampled.query_size_lod(0);
      |                            ^^^^^^^^^^^^^^ the trait `HasQuerySizeLod` is not implemented for `Image<f32, 4, 2, 0, 0, 1, 0, 4>`
      |
      = help: the following other types implement trait `HasQuerySizeLod`: