[TST] Make test_sanity skip if not cluster (#2299)

## Description of changes

*Summarize the changes made by this PR.*
 - Improvements & Bug fixes
	 - Make test_sanity skip if not cluster
 - New functionality
	 - None

## Test plan
*How are these changes tested?*
These are tests
- [x] Tests pass locally with `pytest` for python, `yarn test` for js,
`cargo test` for rust

## Documentation Changes
None

chromadb/test/distributed/test_sanity.py

@@ -7,11 +7,16 @@
 import time
 
 from chromadb.api.types import QueryResult
-from chromadb.test.conftest import COMPACTION_SLEEP, MEMBERLIST_SLEEP
+from chromadb.test.conftest import (
+    COMPACTION_SLEEP,
+    MEMBERLIST_SLEEP,
+    skip_if_not_cluster,
+)
 
 EPS = 1e-6
 
 
+@skip_if_not_cluster()
 def test_add(
     api: ServerAPI,
 ) -> None:
@@ -63,6 +68,7 @@ def test_add(
         assert abs(ground_truth_distances[i] - retrieved_distances[i]) < EPS
 
 
+@skip_if_not_cluster()
 def test_add_include_all_with_compaction_delay(api: ServerAPI) -> None:
     api.reset()