[bitnami/external-dns] docs: update registry doc url

[hongbo-miao]

Description of the change

Just a small update, fixed a dead link. ☺️

Checklist

• [x] Title of the pull request follows this pattern [bitnami/<name_of_the_chart>] Descriptive title
• [x] All commits signed off and in agreement of Developer Certificate of Origin (DCO)

[javsalgar]

Hi!

Thank you so much for reporting. Could you bump the chart patch version? This is necessary for the automation to work

[hongbo-miao]

Done, thanks @javsalgar !

[carrodher]

Thank you for initiating this pull request. We appreciate your effort. Just a friendly reminder that it's important to sign your commits. Adding your signature certifies that you either authored the patch or have the necessary rights to contribute the changes. You can find detailed information on how to do this in the “Sign your work” section of our contributing guidelines.

Feel free to reach out if you have any questions or need assistance with the signing process.

[hongbo-miao]

Thanks @carrodher for reminding! Signed off. 😃

[github-actions[bot]]

This Pull Request has been automatically marked as "stale" because it has not had recent activity (for 15 days). It will be closed if no further activity occurs. Thank you for your contribution.