fix: updated the Da default version to be 8.0 (#344)

Co-authored-by: Jordan-Williams2 <[email protected]>

Author: jor2

ibm_catalog.json

@@ -205,6 +205,7 @@
             {
               "key": "mysql_version",
               "required": true,
+              "default_value": "8.0",
               "options": [
                 {
                   "displayname": "6.2",
@@ -553,6 +554,7 @@
             {
               "key": "mysql_version",
               "required": true,
+              "default_value": "8.0",
               "options": [
                 {
                   "displayname": "6.2",