build: add missing declarations enablement to kurt-open-ai tsconfig

[jemc]

This was missing, causing declarations not to built for the public package. This commit fixes that by enabling the setting.

The other packages already had this setting correct.

[github-actions[bot]]

:tada: This PR is included in version @formula-monks/kurt-open-ai-v1.1.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: