[Dependency:Site] Bump symfony/config from 4.3.1 to 4.3.2 in /site (#3944)
[Dependency:Site] Bump symfony/config from 4.3.1 to 4.3.2 in /site (#3944)

Bumps [symfony/config](https://github.com/symfony/config) from 4.3.1 to 4.3.2.
- [Release notes](https://github.com/symfony/config/releases)
- [Changelog](https://github.com/symfony/config/blob/master/CHANGELOG.md)
- [Commits](https://github.com/symfony/config/compare/v4.3.1...v4.3.2)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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