fix: use non strict schema to allow some undefined behavior (#2524)

* fix: use non strict schema to allow some undefined behavior

* GitHub Actions doesn't use the newer strict schema in the service
* Tolerate more hallucinations

* Update workflow.go

* Update workflow.go

* Update pkg/model/workflow.go

Co-authored-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

---------

Co-authored-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/model/workflow.go

@@ -1,6 +1,7 @@
 package model
 
 import (
+	"errors"
 	"fmt"
 	"io"
 	"reflect"
@@ -70,10 +71,10 @@ func (w *Workflow) OnEvent(event string) interface{} {
 func (w *Workflow) UnmarshalYAML(node *yaml.Node) error {
 	// Validate the schema before deserializing it into our model
 	if err := (&schema.Node{
-		Definition: "workflow-root-strict",
+		Definition: "workflow-root",
 		Schema:     schema.GetWorkflowSchema(),
 	}).UnmarshalYAML(node); err != nil {
-		return err
+		return errors.Join(err, fmt.Errorf("Actions YAML Schema Validation Error detected:\nFor more information, see: https://nektosact.com/usage/schema.html"))
 	}
 	type WorkflowDefault Workflow
 	return node.Decode((*WorkflowDefault)(w))