clang-format: re-format for clang-19

clang-format-19 isn't compatible with the clang-format-18 output, so we
need to reformat the code with the latest version.  A few parameters
in clang-tidy have been deprecated, so adjust the style file
accordingly.

See Ie2f6eb3b043f2d655c9df806815afd7971fd0947 for updated style.
See I88192b41ab7a95599a90915013579608af7bc56f for clang-19 enablement.

Change-Id: I65cb0501917fee37f007ed97ce973e0dd07170fa
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/src/async/context.cpp b/src/async/context.cpp
index 17ec7ce..3381cb3 100644
--- a/src/async/context.cpp
+++ b/src/async/context.cpp
@@ -84,9 +84,9 @@
 
     explicit wait_process_sender(context& ctx) : context_ref(ctx) {}
 
-    friend auto tag_invoke(
-        execution::get_completion_signatures_t, const wait_process_sender&,
-        auto) -> execution::completion_signatures<execution::set_value_t()>;
+    friend auto tag_invoke(execution::get_completion_signatures_t,
+                           const wait_process_sender&, auto)
+        -> execution::completion_signatures<execution::set_value_t()>;
 
     template <execution::receiver R>
     friend auto tag_invoke(execution::connect_t, wait_process_sender&& self,