fix: Update vault addon version to correct issue with default values data type

[bryantbiggs]

What does this PR do?

• Update vault addon version to correct issue with default values data type

Motivation

• Upstream fix is released now fix: Correct default values which should be an array of strings hashicorp/terraform-aws-hashicorp-vault-eks-addon#10
• Resolves Enabling vault add-on causes terraform to fail #1060

More

• Yes, I have tested the PR using my local account setup (Provide any test evidence report under Additional Notes)
• Yes, I have added a new example under examples to support my PR
• Yes, I have created another PR for add-ons under add-ons repo (if applicable)
• Yes, I have updated the docs for this feature
• Yes, I ran pre-commit run -a with this PR

Note: Not all the PRs require a new example and/or doc page. In general:

• Use an existing example when possible to demonstrate a new addons usage
• A new docs page under docs/add-ons/* is required for new a new addon

For Moderators

• E2E Test successfully complete before merge?

Additional Notes

[askulkarni2]

LGTM!