updated ts example to include pulumi/pulumi import

[phillipedwards]

Description

resolve minor issue; missing import statement. fixes pulumi/docs#11440

Checklist:

• [ ] I have reviewed the style guide.
• [ ] If blogging, I have reviewed the blogging guide.
• [ ] I have manually confirmed that all new links work.
• [ ] I added aliases (i.e., redirects) for all filename changes.
• [ ] If making css changes, I rebuilt the bundle.

[pulumi-bot]

Your site preview for commit 03b70ced is ready! :tada:

http://pulumi-hugo-origin-pr-4242-03b70ced.s3-website.us-west-2.amazonaws.com.

[sean1588]

Thanks @phillipedwards, this was already resolved, so going to close it out.