feature: Add codespell check

[0cici]

Description

This PR added codespell check to this repository. Codespell will be implemented in two ways:

• as a local pre-commit hook.
• as a CI job in GitLab/GitHub workflows.

Related

Closes DOC-13429

Testing

In the local PC, install pre-commit by running pip install pre-commit and activate the pre-commit hook by running pre-commit install. Then when you commit changes, the hook will do the check. Based on the recent configuration, it will exclude some folders/files from the check, such as *.png, 3dmodels/espressif.3dshapes, and footprints/Espressif.pretty.
Another simple way is to navigate to the target directory, such as symbols/Espressif.kicad_sym, and then run codepell . to enable the check for the specific file.

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Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.

[0cici]

Hi @pedrominatel, I tried to add codepell to CI as a pre-commit check, but there is no job running. Pls take a look. Thank you!

[pedrominatel]

Hi @pedrominatel, I tried to add codepell to CI as a pre-commit check, but there is no job running. Pls take a look. Thank you!

I had to run manually.

[0cici]

Hi @pedrominatel, I tried to add codepell to CI as a pre-commit check, but there is no job running. Pls take a look. Thank you!

I had to run manually.

Thank you! Now the codespell check passed successfully and no typos are found.
cc: @Shen7436 Pls help review. Thx!

[Shen7436]

Hi @pedrominatel, I tried to add codepell to CI as a pre-commit check, but there is no job running. Pls take a look. Thank you!

I had to run manually.

Thank you! Now the codespell check passed successfully and no typos are found. cc: @Shen7436 Pls help review. Thx!

Hi @0cici LGTM!

[0cici]

Hi @pedrominatel, pls help review and merge it if everything looks good~