Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
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Description

Sorry if this is the wrong place to bring it up, but it appears the slack link on https://openapi-generator.tech/ is broken, as the current link expired. I was wondering if this is a know issue/it has been shut down, or is it a known issue. Sorry if this is the wrong place to bring this up, and my deep apologies, I sincerely appreciate the work you all are doing to maintain this project. Current broken link: https://join.slack.com/t/openapi-generator/shared_invite/enQtNzAyNDMyOTU0OTE1LTY5ZDBiNDI5NzI5ZjQ1Y2E5OWVjMjZkYzY1ZGM2MWQ4YWFjMzcyNDY5MGI4NjQxNDBiMTlmZTc5NjY2ZTQ5MGM

openapi-generator version

N/A

OpenAPI declaration file content or url

N/A

Generation Details

Steps to reproduce

1. Navigate to openapi-generator.tech website
2. Click join slack link without belonging to the current openapi slack workspace
3. You should receive a message saying invite link expired

Related issues/PRs

I haven't found any searching through the issues (truly sorry if I missed it!)

Suggest a fix

Replace the broken link locations with a new invite link to slack.

1. https://github.com/OpenAPITools/openapi-generator/blob/master/website/src/pages/index.js#L123
2. https://github.com/OpenAPITools/openapi-generator/blob/5d68bd6a03f0c48e838b4fe3b98b7e30858c0373/docs/faq.md

3. openapi-generator/website/docusaurus.config.js

   Line 111 in 60dcf86

   href: 'https://join.slack.com/t/openapi-generator/shared_invite/enQtNzAyNDMyOTU0OTE1LTY5ZDBiNDI5NzI5ZjQ1Y2E5OWVjMjZkYzY1ZGM2MWQ4YWFjMzcyNDY5MGI4NjQxNDBiMTlmZTc5NjY2ZTQ5MGM',