fix: ensure default type for params in remote tasks to prevent pipeli…

…ne failures

fix tektoncd#7775

In the existing logic, resources used for ConvertTo should have default values set.
Otherwise, there could be issues with incorrect parameter types being set
(e.g., an array type being treated as a string type).

However, resources fetched from remote sources haven't undergone the SetDefaults
operation. If we directly invoke the ConvertTo operation, it might result in
erroneous outcomes.

For instance, a v1beta1 ClusterTask that undergoes a direct ConvertTo to convert
the resource into a v1 Task for validation might be mistakenly considered invalid.

Additionally, even if a v1beta1 Task passes validation, the process of converting
it to a v1 Task could still incorrectly set default parameter types, leading to
errors during execution.

test/parse/yaml.go

@@ -70,6 +70,7 @@ kind: Task
 
 // MustParseV1beta1TaskAndSetDefaults takes YAML and parses it into a *v1beta1.Task and sets defaults
 func MustParseV1beta1TaskAndSetDefaults(t *testing.T, yaml string) *v1beta1.Task {
+	t.Helper()
 	task := MustParseV1beta1Task(t, yaml)
 	task.SetDefaults(context.Background())
 	return task
@@ -99,6 +100,7 @@ kind: Task
 
 // MustParseV1TaskAndSetDefaults takes YAML and parses it into a *v1.Task and sets defaults
 func MustParseV1TaskAndSetDefaults(t *testing.T, yaml string) *v1.Task {
+	t.Helper()
 	task := MustParseV1Task(t, yaml)
 	task.SetDefaults(context.Background())
 	return task
@@ -150,6 +152,7 @@ kind: Pipeline
 
 // MustParseV1beta1PipelineAndSetDefaults takes YAML and parses it into a *v1beta1.Pipeline and sets defaults
 func MustParseV1beta1PipelineAndSetDefaults(t *testing.T, yaml string) *v1beta1.Pipeline {
+	t.Helper()
 	p := MustParseV1beta1Pipeline(t, yaml)
 	p.SetDefaults(context.Background())
 	return p
@@ -168,6 +171,7 @@ kind: Pipeline
 
 // MustParseV1PipelineAndSetDefaults takes YAML and parses it into a *v1.Pipeline and sets defaults
 func MustParseV1PipelineAndSetDefaults(t *testing.T, yaml string) *v1.Pipeline {
+	t.Helper()
 	p := MustParseV1Pipeline(t, yaml)
 	p.SetDefaults(context.Background())
 	return p