Update symfony/http-kernel requirement from ~2.8|~3.0 to ~2.8|~3.0|~4.0#19

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dependabot/composer/symfony/http-kernel-approx-2.8|approx-3.0|approx-4.0darrynten/any-cache:dependabot/composer/symfony/http-kernel-approx-2.8|approx-3.0|approx-4.0Copy head branch name to clipboard