Update repositories.txt

[HackerNowful]

No description provided.

[github-actions]

A problem was found with your submission https://github.com/HackerNowful/SD-Ducky/tree/1.0.1

❌ ERROR: Submission URL is not a Git clone URL (e.g., https://github.com/arduino-libraries/Servo).

[github-actions]

Thanks for your interest in contributing to the Arduino Library Manager index @HackerNowful
Please resolve the error(s) mentioned in the previous comment.

After resolving the issue, trigger this check again by doing one of the following:

• Commit the required change to the branch you submitted this pull request from.
• Comment here, mentioning @ArduinoBot in the comment.

❗ NOTE: It is not necessary to open a new pull request. ❗

More information:
https://github.com/arduino/library-registry/blob/main/README.md#if-the-problem-is-with-the-pull-request

[per1234]

See #5047 (review)