add heltec v4 board.

[Quency-D]

The addition of the Heltec v4 board has been successfully tested on both Heltec v4.2 and Heltec v4.3.
https://heltec.org/project/wifi-lora-32-v4/

[github-actions]

Warnings

⚠️

Some issues found for the commit messages in this PR: the commit message "Remove the 32M partition option.": summary should not end with a period (full stop) summary looks empty type/action looks empty the commit message "Remove the OPI mode from Flash.": summary should not end with a period (full stop) summary looks empty type/action looks empty the commit message "add heltec v4 board.": summary should not end with a period (full stop) summary looks empty type/action looks empty 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).

👋 Hello Quency-D, we appreciate your contribution to this project!

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

Hi @Quency-D, please fix the CI errors -> https://github.com/espressif/arduino-esp32/actions/runs/24180482620/job/70573532906?pr=12508

[Quency-D]

Hi @Quency-D, please fix the CI errors -> https://github.com/espressif/arduino-esp32/actions/runs/24180482620/job/70573532906?pr=12508

Edited.