add deploy time trigger inits to argo parameter handling (#2146)

metaflow/plugins/argo/argo_workflows.py

@@ -522,7 +522,9 @@ def _process_triggers(self):
             params = set(
                 [param.name.lower() for var, param in self.flow._get_parameters()]
             )
-            for event in self.flow._flow_decorators.get("trigger")[0].triggers:
+            trigger_deco = self.flow._flow_decorators.get("trigger")[0]
+            trigger_deco.format_deploytime_value()
+            for event in trigger_deco.triggers:
                 parameters = {}
                 # TODO: Add a check to guard against names starting with numerals(?)
                 if not re.match(r"^[A-Za-z0-9_.-]+$", event["name"]):
@@ -562,9 +564,11 @@ def _process_triggers(self):
 
         # @trigger_on_finish decorator
         if self.flow._flow_decorators.get("trigger_on_finish"):
-            for event in self.flow._flow_decorators.get("trigger_on_finish")[
-                0
-            ].triggers:
+            trigger_on_finish_deco = self.flow._flow_decorators.get(
+                "trigger_on_finish"
+            )[0]
+            trigger_on_finish_deco.format_deploytime_value()
+            for event in trigger_on_finish_deco.triggers:
                 # Actual filters are deduced here since we don't have access to
                 # the current object in the @trigger_on_finish decorator.
                 triggers.append(