is_dbt_fusion: check that it's exactly 2 (#870)

Author: haritamar

macros/edr/system/system_utils/is_dbt_fusion.sql

@@ -1,5 +1,5 @@
 {% macro is_dbt_fusion() %}
-    {% if dbt_version.split(".")[0] | int > 1 %}
+    {% if dbt_version.split(".")[0] | int == 2 %}
         {% do return(true) %}
     {% endif %}