build(deps-dev): update phpunit/phpunit requirement from ^6.0 to ^6.0 || ^7.0#63

dependabot-preview[bot] wants to merge 4 commits into

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dependabot/composer/phpunit/phpunit-tw-6.0or-tw-7.0adhocore/phint:dependabot/composer/phpunit/phpunit-tw-6.0or-tw-7.0Copy head branch name to clipboard