feat: add pipelines DSL for reusable action logic composition (#2652)

Author: nallwhy

.formatter.exs

@@ -227,6 +227,10 @@ spark_locals_without_parens = [
   pagination: 0,
   pagination: 1,
   parse_attribute: 1,
+  pipe_through: 1,
+  pipe_through: 2,
+  pipeline: 1,
+  pipeline: 2,
   plural_name: 1,
   policy: 0,
   policy: 1,