swift-syntax-rs: Fix bazel formatting

aCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: tausbn

unified/swift-syntax-rs/xcode_transition.bzl

@@ -45,6 +45,7 @@ _xcode_transition = transition(
 
 def _wrapper_impl(ctx):
     src = ctx.attr.actual[0]
+
     # Forward the providers a downstream `rust_*` target reads from `deps`:
     # `DefaultInfo`, `CcInfo` (linking info), and `OutputGroupInfo`.
     providers = [src[DefaultInfo]]