Auto merge of #16997 - Veykril:cfg-if-patch, r=Veykril

fix: Fix `patch_cfg_if` not applying with stitched sysroot

The condition was inverted accidentally..

crates/project-model/src/workspace.rs

@@ -775,7 +775,7 @@ impl ProjectWorkspace {
             ),
         };
 
-        if matches!(sysroot.as_ref().map(|it| it.mode()), Ok(SysrootMode::Workspace(_)))
+        if matches!(sysroot.as_ref().map(|it| it.mode()), Ok(SysrootMode::Stitched(_)))
             && crate_graph.patch_cfg_if()
         {
             tracing::debug!("Patched std to depend on cfg-if")