[Security] Bump acorn from 5.7.3 to 5.7.4#183

eclipse1985 merged 1 commit intomasterarduino/arduino-iot-js:masterfrom

dependabot/npm_and_yarn/acorn-5.7.4arduino/arduino-iot-js:dependabot/npm_and_yarn/acorn-5.7.4Copy head branch name to clipboard