Fix a potential bug in encoder_init().

[mtei]

Description

After executing setPinInputHigh(pin), it is necessary to wait for the charging time to read from the corresponding pin. This is the same as requiring matrix_output_unselect_delay() after doing unselect_row() in matrix.c.

In #15311

Currently, it causes the encoder update function to be spammed

This phenomenon can be expected to be resolved by this PR.

Types of Changes

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

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).

[monksoffunk]

I never experienced such problems.
@drashna which keyboard did it happen on?

anyway, I confirmed that I could build Cassette42 default firmware with this PR.

[drashna]

I never experienced such problems. @drashna which keyboard did it happen on?

anyway, I confirmed that I could build Cassette42 default firmware with this PR.

With the current code, I don't experience it.

However, with the asym encoder PRs, I do. However, this change doesn't appear to cause any issues, and if it's closer to expected/proper behavior, 👍🏻