Add sanity tests for Groups incrementals and restore (#4373)

Need to add `CORSO_SECONDARY_M365_TEST_USER_ID` to the CI before we merge this.

---

#### 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

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [x] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

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* #<issue>

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [ ] 💪 Manual
- [ ] ⚡ Unit test
- [x] 💚 E2E

.github/workflows/sanity-test.yaml

@@ -364,10 +364,34 @@ jobs:
           service: groups
           kind: initial
           backup-args: '--group "${{ vars.CORSO_M365_TEST_TEAM_ID }}"'
+          restore-args: '--folder ${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-sharepoint.outputs.result }}'
           test-folder: '${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-groups.outputs.result }}'
           log-dir: ${{ env.CORSO_LOG_DIR }}
+          with-export: true
 
-      # TODO: incrementals
+      # generate some more enteries for incremental check
+      - name: Groups - Create new data (for incremental)
+        working-directory: ./src/cmd/factory
+        run: |
+          go run . sharepoint files  \
+            --site ${{ secrets.CORSO_M365_TEST_SITE_URL }} \
+            --user ${{ env.TEST_USER }} \
+            --secondaryuser  ${{ env.CORSO_SECONDARY_M365_TEST_USER_ID }} \
+            --tenant ${{ secrets.TENANT_ID }} \
+            --destination ${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-groups.outputs.result }} \
+            --count 4
+
+      - name: Groups - Incremental backup
+        id: groups-incremental
+        uses: ./.github/actions/backup-restore-test
+        with:
+          service: groups
+          kind: incremental
+          backup-args: '--site "${{ secrets.CORSO_M365_TEST_SITE_URL }}"'
+          restore-args: '--folder ${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-groups.outputs.result }}'
+          test-folder: '${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-groups.outputs.result }}'
+          log-dir: ${{ env.CORSO_LOG_DIR }}
+          with-export: true
 
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