Bump dropzone from 4.3.0 to 5.7.0#17

dependabot-preview[bot] wants to merge 1 commit intomasterhaubek/bootstrap4c-dropzone:masterfrom

dependabot/npm_and_yarn/dropzone-5.7.0haubek/bootstrap4c-dropzone:dependabot/npm_and_yarn/dropzone-5.7.0Copy head branch name to clipboard