Leanify PR builds

Author: adamnsch

tox.ini

@@ -14,7 +14,7 @@ envlist =
 	py311-main-aura,
 
 	py37-neo4j{4,5}-pyarrow{10,11,12}-main-{cloud-architecture}
-	py37-neo4j{4,5}-pyarrow{10,11,12}-pullrequest-{cloud-architecture}
+	py37-pullrequest-{cloud-architecture}
 
 	# Vary networkx versions only for relevant tests
 	py310-neo4j{4,5}-pandas{1,2}-pyarrow{7,12}-networkx{2,3}-main-nx