Update dependency eslint-plugin-astro to v1.5.0 (#76)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [eslint-plugin-astro](https://ota-meshi.github.io/eslint-plugin-astro/) ([source](https://github.com/ota-meshi/eslint-plugin-astro)) | [`1.4.0` -> `1.5.0`](https://renovatebot.com/diffs/npm/eslint-plugin-astro/1.4.0/1.5.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/eslint-plugin-astro/1.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/eslint-plugin-astro/1.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/eslint-plugin-astro/1.4.0/1.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/eslint-plugin-astro/1.4.0/1.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>ota-meshi/eslint-plugin-astro (eslint-plugin-astro)</summary>

### [`v1.5.0`](https://github.com/ota-meshi/eslint-plugin-astro/blob/HEAD/CHANGELOG.md#150)

[Compare Source](https://github.com/ota-meshi/eslint-plugin-astro/compare/v1.4.0...v1.5.0)

##### Minor Changes

- [#&#8203;509](https://github.com/ota-meshi/eslint-plugin-astro/pull/509) [`ffee791`](ffee7910d4) Thanks [@&#8203;ota-meshi](https://github.com/ota-meshi)! - chore: use tsdown and isolatedDeclarations

</details>

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### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

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 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

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Reviewed-on: #76
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

package.json

@@ -29,7 +29,7 @@
     "@typescript-eslint/parser": "8.46.3",
     "eslint": "9.39.1",
     "eslint-config-prettier": "10.1.8",
-    "eslint-plugin-astro": "1.4.0",
+    "eslint-plugin-astro": "1.5.0",
     "prettier": "^3.6.2",
     "prettier-plugin-astro": "^0.14.1",
     "prettier-plugin-tailwindcss": "^0.7.0",