Bump the symfony group with 4 updates (simplesamlphp#2251)

Bumps the symfony group with 4 updates: [symfony/polyfill-intl-icu](https://github.com/symfony/polyfill-intl-icu), [symfony/polyfill-intl-grapheme](https://github.com/symfony/polyfill-intl-grapheme), [symfony/polyfill-intl-normalizer](https://github.com/symfony/polyfill-intl-normalizer) and [symfony/polyfill-php83](https://github.com/symfony/polyfill-php83).


Updates `symfony/polyfill-intl-icu` from 1.30.0 to 1.31.0
- [Commits](symfony/polyfill-intl-icu@v1.30.0...v1.31.0)

Updates `symfony/polyfill-intl-grapheme` from 1.30.0 to 1.31.0
- [Commits](symfony/polyfill-intl-grapheme@v1.30.0...v1.31.0)

Updates `symfony/polyfill-intl-normalizer` from 1.30.0 to 1.31.0
- [Commits](symfony/polyfill-intl-normalizer@v1.30.0...v1.31.0)

Updates `symfony/polyfill-php83` from 1.30.0 to 1.31.0
- [Commits](symfony/polyfill-php83@v1.30.0...v1.31.0)

---
updated-dependencies:
- dependency-name: symfony/polyfill-intl-icu
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: symfony
- dependency-name: symfony/polyfill-intl-grapheme
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: symfony
- dependency-name: symfony/polyfill-intl-normalizer
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: symfony
- dependency-name: symfony/polyfill-php83
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: symfony
...

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