Align arguments in a function call in C.

Since the tree-sitter grammar is not very good
at parsing function calls while they're being written,
this is not yet super useful.
However, it prevents the new `hybrid` indent heuristic
from choosing these lines as a baseline, making it
more robust.

runtime/queries/c/indents.scm

@@ -36,3 +36,6 @@
 (parameter_list
   . (parameter_declaration) @anchor
   (#set! "scope" "tail")) @align
+(argument_list
+  . (_) @anchor
+  (#set! "scope" "tail")) @align