Reenable OneDrive kopia-assisted incrementals (#2137)

## Description

Reenable kopia-assisted incrementals now that #2136 contains the bugfix patch

## Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No 

## Type of change

- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Test
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

## Issue(s)

* closes #2133

## Test Plan

- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

src/internal/connector/onedrive/collection.go

@@ -38,7 +38,7 @@ var (
 	_ data.Collection    = &Collection{}
 	_ data.Stream        = &Item{}
 	_ data.StreamInfo    = &Item{}
-	// _ data.StreamModTime = &Item{}
+	_ data.StreamModTime = &Item{}
 )
 
 // Collection represents a set of OneDrive objects retrieved from M365
@@ -158,9 +158,9 @@ func (od *Item) Info() details.ItemInfo {
 	return od.info
 }
 
-// func (od *Item) ModTime() time.Time {
-// 	return od.info.Modified()
-// }
+func (od *Item) ModTime() time.Time {
+	return od.info.Modified()
+}
 
 // populateItems iterates through items added to the collection
 // and uses the collection `itemReader` to read the item

src/internal/connector/onedrive/collection_test.go

@@ -179,9 +179,9 @@ func (suite *CollectionUnitTestSuite) TestCollection() {
 
 			assert.Equal(t, testItemName, readItem.UUID())
 
-			// require.Implements(t, (*data.StreamModTime)(nil), readItem)
-			// mt := readItem.(data.StreamModTime)
-			// assert.Equal(t, now, mt.ModTime())
+			require.Implements(t, (*data.StreamModTime)(nil), readItem)
+			mt := readItem.(data.StreamModTime)
+			assert.Equal(t, now, mt.ModTime())
 
 			readData, err := io.ReadAll(readItem.ToReader())
 			require.NoError(t, err)