Rename 'contributing paths' to 'relevant paths'

src/snapshot_middleware/snapshots/test__server_from_imfs.snap

@@ -5,7 +5,7 @@ expression: instance_snapshot
 snapshot_id: ~
 metadata:
   ignore_unknown_instances: false
-  contributing_paths:
+  relevant_paths:
     - /foo.server.lua
 name: foo
 class_name: Script
@@ -13,4 +13,4 @@ properties:
   Source:
     Type: String
     Value: Hello there!
-children: []
+children: []