Skip path translation of job task for jobs with a Git source (#404)

## Changes

Added skipping of translating paths for notebook path in notebook tasks
and python file path in spark python tasks if the git source is not null.

Resolves: #402

## Tests

There is a unit test and also tested with a sample bundle:

```
resources:
  jobs:
    demo:
      git_source:
        git_branch: master
        git_provider: github
        git_url: https://github.com/test/dummy
   ....
```

---------

Co-authored-by: Pieter Noordhuis <pieter.noordhuis@databricks.com>

bundle/config/mutator/translate_paths.go

@@ -154,6 +154,11 @@ func (m *translatePaths) Apply(_ context.Context, b *bundle.Bundle) error {
 			return fmt.Errorf("unable to determine directory for job %s: %w", key, err)
 		}
 
+		// Do not translate job task paths if using git source
+		if job.GitSource != nil {
+			continue
+		}
+
 		for i := 0; i < len(job.Tasks); i++ {
 			err := m.translateJobTask(dir, b, &job.Tasks[i])
 			if err != nil {

bundle/config/mutator/translate_paths_test.go

@@ -31,6 +31,73 @@ func touchEmptyFile(t *testing.T, path string) {
 	f.Close()
 }
 
+func TestTranslatePathsSkippedWithGitSource(t *testing.T) {
+	dir := t.TempDir()
+	bundle := &bundle.Bundle{
+		Config: config.Root{
+			Path: dir,
+			Workspace: config.Workspace{
+				FilesPath: "/bundle",
+			},
+			Resources: config.Resources{
+				Jobs: map[string]*resources.Job{
+					"job": {
+
+						Paths: resources.Paths{
+							ConfigFilePath: filepath.Join(dir, "resource.yml"),
+						},
+						JobSettings: &jobs.JobSettings{
+							GitSource: &jobs.GitSource{
+								GitBranch:   "somebranch",
+								GitCommit:   "somecommit",
+								GitProvider: "github",
+								GitTag:      "sometag",
+								GitUrl:      "https://github.com/someuser/somerepo",
+							},
+							Tasks: []jobs.JobTaskSettings{
+								{
+									NotebookTask: &jobs.NotebookTask{
+										NotebookPath: "my_job_notebook.py",
+									},
+								},
+								{
+									PythonWheelTask: &jobs.PythonWheelTask{
+										PackageName: "foo",
+									},
+								},
+								{
+									SparkPythonTask: &jobs.SparkPythonTask{
+										PythonFile: "my_python_file.py",
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	err := mutator.TranslatePaths().Apply(context.Background(), bundle)
+	require.NoError(t, err)
+
+	assert.Equal(
+		t,
+		"my_job_notebook.py",
+		bundle.Config.Resources.Jobs["job"].Tasks[0].NotebookTask.NotebookPath,
+	)
+	assert.Equal(
+		t,
+		"foo",
+		bundle.Config.Resources.Jobs["job"].Tasks[1].PythonWheelTask.PackageName,
+	)
+	assert.Equal(
+		t,
+		"my_python_file.py",
+		bundle.Config.Resources.Jobs["job"].Tasks[2].SparkPythonTask.PythonFile,
+	)
+}
+
 func TestTranslatePaths(t *testing.T) {
 	dir := t.TempDir()
 	touchNotebookFile(t, filepath.Join(dir, "my_job_notebook.py"))