Update the derivation of the test view name

Use the local MD5 macro to create a more unique hash based on the SQL of the test itself

Author: Benjamin-Knight

dbt/include/sqlserver/macros/materializations/tests.sql

@@ -8,7 +8,7 @@
   END
 
   {% set testview %}
-    [{{ target.schema }}.testview_{{ range(1300, 19000) | random }}]
+    [{{ target.schema }}.testview_{{ local_md5(main_sql) }}]
   {% endset %}
 
   {% set sql = main_sql.replace("'", "''")%}