fix: skip add plugin when already imported

[syi0808]

Prerequisites checklist

• I have read the contributing guidelines.

What is the purpose of this pull request?

prevent syntax error which threw by duplicate import fixupPluginRules because of multiple compat needs plugins.

What changes did you make? (Give an overview)

• skip add fixupPluginRules when already pushed in bindings

Related Issues

fixes #72

Is there anything you'd like reviewers to focus on?

[linux-foundation-easycla]

• ✅login: syi0808 / (3c43f26)

The committers listed above are authorized under a signed CLA.

[eslint-github-bot]

Hi @syi0808!, thanks for the Pull Request

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[nzakas]

Thanks for the contribution. We need you to fill out a bug report before we can consider this.

[syi0808]

Thanks for the contribution. We need you to fill out a bug report before we can consider this.

I fill out a bug report and connect this pr. thank you!

[nzakas]

@syi0808 we also need you to sign the CLA. Please see the comment posted by the bot.

[nzakas]

Changes LGTM. Just need the CLA signed to merge.

[syi0808]

Changes LGTM. Just need the CLA signed to merge.

I'm sorry to have made you check many times. I signed CLA now. thank you!

[nzakas]

No worries. Thank you!