chore: Bump version number for release (#314)

## Motivation

We want to keep examples in readme up to date.

## Summary

Bumped version referenced in readme examples to the next published
verstion.

README.md

@@ -37,7 +37,7 @@ terraform {
   required_providers {
     nobl9 = {
       source = "nobl9/nobl9"
-      version = "0.29.2"
+      version = "0.30.0"
     }
   }
 }