fix: update output handling for reusable workflows (#1521)

* fix: map job output for reusable workflows

This fixes the job outputs for reusable workflows. There is
a required indirection. Before this we took the outputs from
all jobs which is not what users express with the workflow
outputs.

* fix: remove double evaluation

---------

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/model/workflow.go

@@ -117,6 +117,10 @@ type WorkflowCall struct {
 	Outputs map[string]WorkflowCallOutput `yaml:"outputs"`
 }
 
+type WorkflowCallResult struct {
+	Outputs map[string]string
+}
+
 func (w *Workflow) WorkflowCallConfig() *WorkflowCall {
 	if w.RawOn.Kind != yaml.MappingNode {
 		return nil