Filter down to Python wheel tasks only for trampoline (#712)

## Changes

Fixes issue introduced in #635.

## Tests

Added new unit test to confirm correct behavior.

Manually deployed sample bundle.

bundle/python/transform.go

@@ -69,6 +69,12 @@ func (t *pythonTrampoline) GetTasks(b *bundle.Bundle) []mutator.TaskWithJobKey {
 		tasks := r.Jobs[k].JobSettings.Tasks
 		for i := range tasks {
 			task := &tasks[i]
+
+			// Keep only Python wheel tasks
+			if task.PythonWheelTask == nil {
+				continue
+			}
+
 			result = append(result, mutator.TaskWithJobKey{
 				JobKey: k,
 				Task:   task,

bundle/python/transform_test.go

@@ -4,6 +4,9 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/bundle/config"
+	"github.com/databricks/cli/bundle/config/resources"
 	"github.com/databricks/databricks-sdk-go/service/jobs"
 	"github.com/stretchr/testify/require"
 )
@@ -12,9 +15,9 @@ type testCase struct {
 	Actual   []string
 	Expected string
 }
-type NamedParams map[string]string
+
 type testCaseNamed struct {
-	Actual   NamedParams
+	Actual   map[string]string
 	Expected string
 }
 
@@ -27,12 +30,12 @@ var paramsTestCases []testCase = []testCase{
 }
 
 var paramsTestCasesNamed []testCaseNamed = []testCaseNamed{
-	{NamedParams{}, `"python"`},
-	{NamedParams{"a": "1"}, `"python", "a=1"`},
-	{NamedParams{"a": "'1'"}, `"python", "a='1'"`},
-	{NamedParams{"a": `"1"`}, `"python", "a=\"1\""`},
-	{NamedParams{"a": "1", "b": "2"}, `"python", "a=1", "b=2"`},
-	{NamedParams{"data": `{"a": 1}`}, `"python", "data={\"a\": 1}"`},
+	{map[string]string{}, `"python"`},
+	{map[string]string{"a": "1"}, `"python", "a=1"`},
+	{map[string]string{"a": "'1'"}, `"python", "a='1'"`},
+	{map[string]string{"a": `"1"`}, `"python", "a=\"1\""`},
+	{map[string]string{"a": "1", "b": "2"}, `"python", "a=1", "b=2"`},
+	{map[string]string{"data": `{"a": 1}`}, `"python", "data={\"a\": 1}"`},
 }
 
 func TestGenerateParameters(t *testing.T) {
@@ -64,3 +67,35 @@ func TestGenerateBoth(t *testing.T) {
 	require.Error(t, err)
 	require.ErrorContains(t, err, "not allowed to pass both paramaters and named_parameters")
 }
+
+func TestTransformFiltersWheelTasksOnly(t *testing.T) {
+	trampoline := pythonTrampoline{}
+	bundle := &bundle.Bundle{
+		Config: config.Root{
+			Resources: config.Resources{
+				Jobs: map[string]*resources.Job{
+					"job1": {
+						JobSettings: &jobs.JobSettings{
+							Tasks: []jobs.Task{
+								{
+									TaskKey:         "key1",
+									PythonWheelTask: &jobs.PythonWheelTask{},
+								},
+								{
+									TaskKey:      "key2",
+									NotebookTask: &jobs.NotebookTask{},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	tasks := trampoline.GetTasks(bundle)
+	require.Len(t, tasks, 1)
+	require.Equal(t, "job1", tasks[0].JobKey)
+	require.Equal(t, "key1", tasks[0].Task.TaskKey)
+	require.NotNil(t, tasks[0].Task.PythonWheelTask)
+}