[BUG][TST] Fix bug in tenant state machine test (#1288)

## Description of changes

*Summarize the changes made by this PR.*
 - Improvements & Bug fixes
- Fix minor bug in tenant state machine to be sure we always reference
the model
 - New functionality
	 - N/A

## Test plan
*How are these changes tested?*
These are test changes

## Documentation Changes
None required.

chromadb/test/property/test_collections.py

@@ -57,7 +57,7 @@ def create_coll(
         self.set_model(coll.name, coll.metadata)
 
         assert c.name == coll.name
-        assert c.metadata == coll.metadata
+        assert c.metadata == self.model[coll.name]
         return multiple(coll)
 
     @rule(coll=collections)
@@ -151,7 +151,7 @@ def get_or_create_coll(
 
         # Check that model and API are in sync
         assert c.name == coll.name
-        assert c.metadata == coll.metadata
+        assert c.metadata == self.model[coll.name]
         return multiple(coll)
 
     @rule(
@@ -199,7 +199,7 @@ def modify_coll(
         c = self.api.get_collection(name=coll.name)
 
         assert c.name == coll.name
-        assert c.metadata == coll.metadata
+        assert c.metadata == self.model[coll.name]
         return multiple(coll)
 
     def set_model(