allow LINE_PINxx for Teensy 4.x pins for indicator LEDs as well

[stapelberg]

Description

This is the same change as #13247, but for the indicator LEDs (caps lock etc.).

I only noticed this was missing while preparing another pull request.

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

• development question: pin abstraction layer and Teensy 4.x #13052

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[skullydazed]

This PR showed me that we are overdue for implementing refs in our jsonschema, so I did that in #13271. I think that will also solve this problem for you?

[stapelberg]

This PR showed me that we are overdue for implementing refs in our jsonschema, so I did that in #13271. I think that will also solve this problem for you?

Yes, I can confirm. When I rebase my keyboard controller PR onto your PR, it also compiles cleanly. Thanks!

[skullydazed]

Closing in favor of #13271.