feat(xiao esp32c5): Add definitions for battery voltage sampling pin and enable pin

[Lee-Stone]

Description of Change

Added battery management pins for the XIAO ESP32C5, defined as follows:

• Battery voltage sampling pin (GPIO6)
• Battery enable pin (GPIO26)

These definitions allow users to easily monitor the battery voltage on the XIAO ESP32C5 development board.

Test Scenarios

Tested and verified on the XIAO ESP32C5 hardware:

• Reading battery voltage via GPIO6
• Enabling/disabling battery function via GPIO26

Related links

espressif/arduino-esp32#11677

[CLAassistant]

All committers have signed the CLA.

[github-actions]

Warnings

⚠️

Some issues found for the commit messages in this PR: the commit message "Modify pin definition name": summary looks empty type/action looks empty the commit message "feat(xiao esp32c5): Add definitions for the battery voltage sampling pin and the enable pin": scope/component should be lowercase without whitespace, allowed special characters are _ / . , * - . Please fix these commit messages - here are some basic tips: follow Conventional Commits style correct format of commit message should be: <type/action>(<scope/component>): <summary>, for example fix(esp32): Fixed startup timeout issue allowed types are: change,ci,docs,feat,fix,refactor,remove,revert,test sufficiently descriptive message summary should be between 10 to 72 characters and start with upper case letter avoid Jira references in commit messages (unavailable/irrelevant for our customers) TIP: Install pre-commit hooks and run this check when committing (uses the Conventional Precommit Linter).

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[P-R-O-C-H-Y]

@Lee-Stone PLease check my comment and sing the CLA. Also can you post any docs leading to the XIAO C5?

[Lee-Stone]

@Lee-Stone PLease check my comment and sing the CLA. Also can you post any docs leading to the XIAO C5?

OK, modified. And I'm sorry, I can't provide the documentation for xiao esp32c5 at the moment, but it will be available on seeed soon, and a related wiki will be provided then.

[P-R-O-C-H-Y]

@Lee-Stone Have you signed the CLA?

[Lee-Stone]

@Lee-Stone Have you signed the CLA?

Sorry, it's signed now.