build(deps-dev): bump eslint-plugin-astro from 1.3.1 to 1.4.0

Bumps [eslint-plugin-astro](https://github.com/ota-meshi/eslint-plugin-astro) from 1.3.1 to 1.4.0.
- [Release notes](https://github.com/ota-meshi/eslint-plugin-astro/releases)
- [Changelog](https://github.com/ota-meshi/eslint-plugin-astro/blob/main/CHANGELOG.md)
- [Commits](ota-meshi/eslint-plugin-astro@v1.3.1...v1.4.0)

---
updated-dependencies:
- dependency-name: eslint-plugin-astro
  dependency-version: 1.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -40,7 +40,7 @@
     "@types/lodash.kebabcase": "^4.1.9",
     "@typescript-eslint/parser": "^8.46.2",
     "eslint": "^9.38.0",
-    "eslint-plugin-astro": "^1.3.1",
+    "eslint-plugin-astro": "^1.4.0",
     "globals": "^16.4.0",
     "pagefind": "^1.4.0",
     "prettier": "^3.6.0",