Updated 1.3 attribute

Author: hmanwani-rh

artifacts/attributes.adoc

@@ -10,9 +10,9 @@
 :product: Red Hat Developer Hub
 :product-short: Developer Hub
 :product-very-short: RHDH
-:product-version: 1.4
-:product-bundle-version: 1.4.0
-:product-chart-version: 1.4.0
+:product-version: 1.3
+:product-bundle-version: 1.3.0
+:product-chart-version: 1.3.0
 :product-backstage-version: 1.29.2
 :rhdeveloper-name: Red Hat Developer
 :rhel: Red Hat Enterprise Linux