Bump guzzlehttp/guzzle from 7.0.1 to 7.4.3 in /backend/php#22

dependabot[bot] wants to merge 1 commit intomasterNateLevin1/websystem:masterfrom

dependabot/composer/backend/php/guzzlehttp/guzzle-7.4.3NateLevin1/websystem:dependabot/composer/backend/php/guzzlehttp/guzzle-7.4.3Copy head branch name to clipboard