Bump guzzlehttp/guzzle from 5.3.0 to 5.3.4 in /lib/Services/Ginger#2

dependabot[bot] wants to merge 1 commit intomasterOpenMageModuleFostering/gingerpayments:masterfrom

dependabot/composer/lib/Services/Ginger/guzzlehttp/guzzle-5.3.4OpenMageModuleFostering/gingerpayments:dependabot/composer/lib/Services/Ginger/guzzlehttp/guzzle-5.3.4Copy head branch name to clipboard